APA (7e ed.) Bronvermelding

Congdon, R. J. (1977). Introduction to appropriate technology: Toward a simpler life-style. Rodale Press.

Chicago (17e ed.) Bronvermelding

Congdon, R. J. Introduction to Appropriate Technology: Toward a Simpler Life-style. Emmaus, Pa.: Rodale Press, 1977.

MLA (8e ed.) Bronvermelding

Congdon, R. J. Introduction to Appropriate Technology: Toward a Simpler Life-style. Rodale Press, 1977.