Cita APA

Economist Publications (Firm). (1981). The World in figures (3rd ed.). Economist Newspaper Ltd. ; Distributed by Gale Research.

Citación estilo Chicago

Economist Publications (Firm). The World in Figures. 3rd ed. London, England : Detroit, Mich.: Economist Newspaper Ltd. ; Distributed by Gale Research, 1981.

Cita MLA

Economist Publications (Firm). The World in Figures. 3rd ed. Economist Newspaper Ltd. ; Distributed by Gale Research, 1981.

Warning: These citations may not always be 100% accurate.