1.
|
West Midlands, England : Helion & Company, 2016.
|
2.
|
[Denver, Colo.?] : The Survey : [For sale by Open-File Reports Section, 1994]
I 19.76: 94-419 |
|
3.
|
[Reston, Va.?] : The Survey ; [Denver, Colo. : Open-File Reports Section, distributor], 1994.
I 19.76: 94-421 |
|
4.
|
[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [1996]
I 19.76: 96-60 |
|
5.
|
West Midlands, England : Helion & Company, 2016.
|
6.
|
[Reston, Va.?] : The Survey, 1997.
I 19.76: 97-434 |
|
7.
|
Solihull, West Midlands : Helion & Company Limited, 2016.
|
8.
|
[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [1996]
I 19.76: 96-44 |
|
9.
|
Solihull, West Midlands : Helion & Company Limited, 2015.
|
10.
|
Havertown, Pennsylvania ; Oxford, England : Casemate Publishers, [2020] ©2020
|