Παραπομπή σε μορφή APA (7η εκδ.)

Andersson, H. (2000). Photoperiodism in pigs: Studies on timing of male puberty and melatonin. Swedish University of Agricultural Sciences.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Andersson, Håkan. Photoperiodism in Pigs: Studies on Timing of Male Puberty and Melatonin. Uppsala: Swedish University of Agricultural Sciences, 2000.

Παραπομπή σε μορφή MLA (8th εκδ.)

Andersson, Håkan. Photoperiodism in Pigs: Studies on Timing of Male Puberty and Melatonin. Swedish University of Agricultural Sciences, 2000.