APA
Thompson G. R., . (1991). Modern physical geology. Philadelphia: Saunders College Publishing.
Chicago
Thompson Graham R, . 1991. Modern physical geology. Philadelphia: Saunders College Publishing.
Harvard
Thompson G. R., . (1991). Modern physical geology. Philadelphia: Saunders College Publishing.
MLA
Thompson Graham R, . Modern physical geology. Philadelphia: Saunders College Publishing. 1991.