Babcock, D. C. (1929). Man and social achievement: An introduction to social evolution. Longmans, Green and Co..
Chicago (17e ed.) BronvermeldingBabcock, Donald Campbell. Man and Social Achievement: An Introduction to Social Evolution. New York, London [etc.]: Longmans, Green and Co., 1929.
MLA (8e ed.) BronvermeldingBabcock, Donald Campbell. Man and Social Achievement: An Introduction to Social Evolution. Longmans, Green and Co., 1929.
Let op: Deze citaties zijn niet altijd 100% accuraat.