Cita APA (7a ed.)

Petr, J. (1988). Yield formation in the main field crops (1st edition.). Elsevier.

Cita Chicago Style (17a ed.)

Petr, J. Yield Formation in the Main Field Crops. 1st edition. New York: Elsevier, 1988.

Cita MLA (8a ed.)

Petr, J. Yield Formation in the Main Field Crops. 1st edition. Elsevier, 1988.