APA (7th ed.) Citation

Petr, J., Černý, V., & Hruška, L. (1988). Yield formation in the main field crops. Elsevier.

Chicago Style (17th ed.) Citation

Petr, J., V. Černý, and L. Hruška. Yield Formation in the Main Field Crops. Amsterdam ; New York: Elsevier, 1988.

MLA (9th ed.) Citation

Petr, J., et al. Yield Formation in the Main Field Crops. Elsevier, 1988.