Cita APA

(1970). Contours of change. Washington, D.C: Argriculture.

Chicago Style Citation

Contours of Change. Washington, D.C: Argriculture, 1970.

Cita MLA

Contours of Change. Washington, D.C: Argriculture, 1970.

Atenció: Aquestes cites poden no estar 100% correctes.