Petrifaction -- Comic books, strips, etc. |
19 |
Petrified Forest National Park (Ariz.) -- Description and travel. |
1 |
Petrified Forest of Arizona (Ariz.) -- Description and travel. |
-- |
SEE: Petrified Forest National Park (Ariz.) -- Description and travel. |
1 |
Petro, Büyük, 1672-1725 |
-- |
SEE: Peter I, Emperor of Russia, 1672-1725 |
5 |
Petroglyphs |
1 |
SEE ALSO: Rock paintings |
1 |
Petroglyphs -- Fiction. |
1 |
Petrography |
-- |
SEE: Petrology. |
14 |
Petroleum |
2 |
Petroleum as fuel -- United States. |
1 |
Petroleum contamination of rivers, harbors, etc. |
-- |
SEE: Oil pollution of rivers, harbors, etc. |
1 |