APA (7e ed.) Bronvermelding
ebrary, Inc. (2007). Pocket world in figures (2008 ed.). Economist in association with Profile Books.
Chicago (17e ed.) Bronvermelding
ebrary, Inc. Pocket World in Figures. 2008 ed. London: Economist in association with Profile Books, 2007.
MLA (9e ed.) Bronvermelding
ebrary, Inc. Pocket World in Figures. 2008 ed. Economist in association with Profile Books, 2007.
Let op: Deze citaties zijn niet altijd 100% accuraat.