Παραπομπή σε μορφή APA (7η εκδ.)

Swanepoel, J. H. (1970). The ontogenesis of the chondrocranium and of the nasal sac of the microhylid frog Breviceps adspersus pentheri Werner. Stellenbosch University.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Swanepoel, J. H. The Ontogenesis of the Chondrocranium and of the Nasal Sac of the Microhylid Frog Breviceps Adspersus Pentheri Werner. Stellenbosch: Stellenbosch University, 1970.

Παραπομπή σε μορφή MLA (8th εκδ.)

Swanepoel, J. H. The Ontogenesis of the Chondrocranium and of the Nasal Sac of the Microhylid Frog Breviceps Adspersus Pentheri Werner. Stellenbosch University, 1970.