APA (7e ed.) Bronvermelding
Shrock, R. R. (1958). McGraw-Hill series in the geological sciences. McGraw-Hill.
Chicago (17e ed.) Bronvermelding
Shrock, Robert Rakes. McGraw-Hill Series in the Geological Sciences. New York [usw.]: McGraw-Hill, 1958.
MLA (9e ed.) Bronvermelding
Shrock, Robert Rakes. McGraw-Hill Series in the Geological Sciences. McGraw-Hill, 1958.
Let op: Deze citaties zijn niet altijd 100% accuraat.