Cita APA (7th ed.)
Seamands, J. T. (1988). Harvest of humanity. Victor Books.
Cita Chicago (17th ed.)
Seamands, John T. Harvest of Humanity. Wheaton, IL: Victor Books, 1988.
Cita MLA (9th ed.)
Seamands, John T. Harvest of Humanity. Victor Books, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.