APA (7th ed.) Citation

Robbelen, G., Downey, R. K., & Ashri, A. (1989). Oil crops of the world: Their breeding and utilization. McGraw-Hill.

Chicago Style (17th ed.) Citation

Robbelen, Gerhard, R. Keith Downey, and A. Ashri. Oil Crops of the World: Their Breeding and Utilization. New York: McGraw-Hill, 1989.

MLA (9th ed.) Citation

Robbelen, Gerhard, et al. Oil Crops of the World: Their Breeding and Utilization. McGraw-Hill, 1989.