|
Petroglyphs Spain Mancha : Rocio, Ramiro Rodero,
|
2018
|
1
|
|
Petroglyphs Texas El Paso County : Edmondson, G. C.,
|
1981
|
1
|
|
Petroglyphs Utah Nine Mile Canyon : Spangler, Jerry D.
|
2012
|
1
|
|
Petrography -- See Petrology
|
|
1
|
|
Petroleum Africa Sub Saharan : Tuttle, M. L.
|
1997
|
1
|
|
Petroleum Alabama : Hatch, Joseph R.
|
2007
|
1
|
|
Petroleum Alaska : Martin, G. C.
|
1921
|
1
|
|
Petroleum Alaska Maps : Martin, G. C.
|
1921
|
1
|
|
Petroleum Alaska North Slope Region : Houseknecht, David W.
|
2006
|
1
|
|
Petroleum Alaska Pacific Coast : Martin, G. C.
|
1905
|
1
|
|
Petroleum Alaska Reserves -- See Petroleum reserves Alaska
|
|
1
|
|
Petroleum Appalachian Region : Mills, R. Van A.
|
1919
|
1
|
|
Petroleum As Fuel Prices Massachusetts : United States.
|
2009
|
1
|
|
Petroleum As Fuel Research United States : United States.
|
2000
|
1
|
|
Petroleum As Fuel Social Aspects United States : Kunstler, James Howard.
|
2009
|
1
|