|
USA | |
- Northeast Carrizo Mountains Mining District
| Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 166. |
- Petrified Forest National Park
| Peirce, H.W. (1990), AZ Geol. Sur. Industrial Minerals card file. Peirce, .W. and J.R. Scurlock (1972), Arizona well information, AZ Bur. Mines Bull. 185 Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182 |
- Sanders-Defiance Plateau area (Sanders-Cheto District)
| Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182:176. |
| Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 176. |
| Peirce, H.W. (1990), AZ Geol. Sur. Industrial Minerals card file. Spencer, Jon (1983), Helium resources and production in Arizona: Fieldnotes, Vl. 13, No. 2: 6-7, 15-16 |
| Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182:176. |
| Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 176. |
| Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182:176. |
| Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 176. |
| Peirce, K., AZ Bur. Mines Bul. 182: 175. |
| Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182:176. |
| Peirce, K.W., AZ Bur. Mines Bull. 182: 176. |
| Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182:176. |
| Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 176. |
| Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 176. |
| Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 176. |
| Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 176. |
| Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 176. |
| Peirce, K.W., AZ Bur. Mines Bull. 182: 176. |
| Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182:176. |