APA Citatie

Dept. of Agriculture. (1970). Contours of change. [Washington: For sale by the Supt. of Docs..

Chicago Style citaat

Dept. of Agriculture. Contours of Change. [Washington: For sale by the Supt. of Docs., 1970.

MLA citatie

Dept. of Agriculture. Contours of Change. [Washington: For sale by the Supt. of Docs., 1970.

Let op: Deze citaties zijn niet altijd 100% accuraat.