APA (7th ed.) Citation

Hawkes, J. G., & Hjerting, J. P. (1989). The potatoes of Bolivia: Their breeding value and evolutionary relationships. Clarendon Pr.

Chicago Style (17th ed.) Citation

Hawkes, J. G., and J. P. Hjerting. The Potatoes of Bolivia: Their Breeding Value and Evolutionary Relationships. Oxford: Clarendon Pr, 1989.

MLA (9th ed.) Citation

Hawkes, J. G., and J. P. Hjerting. The Potatoes of Bolivia: Their Breeding Value and Evolutionary Relationships. Clarendon Pr, 1989.