Guide to the study of rocks
Spock, L. E.
Guide to the study of rocks - 2nd ed. - New York Harper and row, publishers 1953 - xvi,256p.
Geology
Rock
552 / SPO
Guide to the study of rocks - 2nd ed. - New York Harper and row, publishers 1953 - xvi,256p.
Geology
Rock
552 / SPO