Cita APA (7a ed.)

Heyne, E. (1987). Wheat and wheat improvement (2nd edition.). ASA : SSSA : CSSA.

Cita Chicago Style (17a ed.)

Heyne, E.G. Wheat and Wheat Improvement. 2nd edition. Madison, Wisconsin: ASA : SSSA : CSSA, 1987.

Cita MLA (8a ed.)

Heyne, E.G. Wheat and Wheat Improvement. 2nd edition. ASA : SSSA : CSSA, 1987.