Cita APA (7th ed.)
Boyce, J. (1975). Agriculture reseach and extension programs. ADC.
Cita Chicago (17th ed.)
Boyce, James. Agriculture Reseach and Extension Programs. New York: ADC, 1975.
Cita MLA (9th ed.)
Boyce, James. Agriculture Reseach and Extension Programs. ADC, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.