APA (7e ed.) Bronvermelding
Richards, M. D., & Riley, P. F. (2000). Term paper resource guide to twentieth-century world history. Greenwood Press.
Chicago (17e ed.) Bronvermelding
Richards, Michael D., en Philip F. Riley. Term Paper Resource Guide to Twentieth-century World History. Westport, Conn.: Greenwood Press, 2000.
MLA (9e ed.) Bronvermelding
Richards, Michael D., en Philip F. Riley. Term Paper Resource Guide to Twentieth-century World History. Greenwood Press, 2000.
Let op: Deze citaties zijn niet altijd 100% accuraat.