Gaya APA
Pough, F, H.
(1953).
Peterson Field Guides Rocks and Minerals
(
5)
.
Canada:
Houghton Mifflin.
Gaya MLA
Pough, Frederick, H..
"Peterson Field Guides Rocks and Minerals".
5
Canada:
Houghton Mifflin,
1953.
Textbook.