APA
Shelton J. S., . (1966). Geology illustrated. Francisco: W. H. Freeman.
Chicago
Shelton John S, . 1966. Geology illustrated. Francisco: W. H. Freeman.
Harvard
Shelton J. S., . (1966). Geology illustrated. Francisco: W. H. Freeman.
MLA
Shelton John S, . Geology illustrated. Francisco: W. H. Freeman. 1966.