Παραπομπή σε μορφή APA (7η εκδ.)

Timberlake, P. H. (1980). Review of North American Exomalopsis (Hymenoptera: Anthophoridae). University of California Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Timberlake, Philip Hunter. Review of North American Exomalopsis (Hymenoptera: Anthophoridae). Berkeley: University of California Press, 1980.

Παραπομπή σε μορφή MLA (9th εκδ.)

Timberlake, Philip Hunter. Review of North American Exomalopsis (Hymenoptera: Anthophoridae). University of California Press, 1980.