Cita APA (7th ed.)
Barker, J. (1984). The Politics of agriculture in tropical Africa. Sage Publications.
Cita Chicago (17th ed.)
Barker, Jonathan. The Politics of Agriculture in Tropical Africa. Beverly Hills: Sage Publications, 1984.
Cita MLA (9th ed.)
Barker, Jonathan. The Politics of Agriculture in Tropical Africa. Sage Publications, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.