APA (7th ed.) Citation

Beukema, H. P., & Zaag, D. E. V. d. (1990). Introduction to potato production. Pudoc.

Chicago Style (17th ed.) Citation

Beukema, H. P., and D. E. Van der Zaag. Introduction to Potato Production. Wageningen, The Netherlands: Pudoc, 1990.

MLA (9th ed.) Citation

Beukema, H. P., and D. E. Van der Zaag. Introduction to Potato Production. Pudoc, 1990.