Citazione APA

Jurgens, J. D. (1971). The morphology of the nasal region of Amphibia and its bearing of the phylogeny of the group. [University of Stellenbosch, Zoological Institute].

Stile di citazione Chicago

Jurgens, J. D. The Morphology of the Nasal Region of Amphibia and Its Bearing of the Phylogeny of the Group. Stellenbosch: [University of Stellenbosch, Zoological Institute], 1971.

Citazione MLA

Jurgens, J. D. The Morphology of the Nasal Region of Amphibia and Its Bearing of the Phylogeny of the Group. [University of Stellenbosch, Zoological Institute], 1971.