APA (7. basım) Alıntı
ebrary, Inc. (2007). Pocket world in figures (2008 ed.). Economist in association with Profile Books.
Chicago Style (17. basım) Atıf
ebrary, Inc. Pocket World in Figures. 2008 ed. London: Economist in association with Profile Books, 2007.
MLA (9th ed.) Atıf
ebrary, Inc. Pocket World in Figures. 2008 ed. Economist in association with Profile Books, 2007.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..