APA

(1971). Encyclopaedia Britannica : Botha - Carthage. Chicago: Encyclopaedia Britannica.

Chicago

1971. Encyclopaedia Britannica : Botha - Carthage. Chicago: Encyclopaedia Britannica.

Harvard

(1971). Encyclopaedia Britannica : Botha - Carthage. Chicago: Encyclopaedia Britannica.

MLA

Encyclopaedia Britannica : Botha - Carthage. Chicago: Encyclopaedia Britannica. 1971.