Παραπομπή APA

Kool, M. (1994). Buying behaviour of farmers. Wageningen.

Παραπομπή Chicago Style

Kool, Maarten. Buying Behaviour of Farmers. Netherlands: Wageningen, 1994.

Παραπομπή MLA

Kool, Maarten. Buying Behaviour of Farmers. Wageningen, 1994.