Παραπομπή σε μορφή APA (7η εκδ.)

Wilmink, J. B. M. (1987). Studies on test-day and lactation milk, fat and protein yield of dairy cows. Landbouwuniversiteit te Wageningen?.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wilmink, J. B. M. Studies on Test-day and Lactation Milk, Fat and Protein Yield of Dairy Cows. [Wageningen?: Landbouwuniversiteit te Wageningen?, 1987.

Παραπομπή σε μορφή MLA (8th εκδ.)

Wilmink, J. B. M. Studies on Test-day and Lactation Milk, Fat and Protein Yield of Dairy Cows. Landbouwuniversiteit te Wageningen?, 1987.