APA (7th ed.) Citation

Harris, J. E. (1938). The dorsal spine of Cladoselache.: The neurocranium and jaws of Cladselache. [publisher not identified].

Chicago Style (17th ed.) Citation

Harris, John Edward. The Dorsal Spine of Cladoselache.: The Neurocranium and Jaws of Cladselache. Cleveland, O.: [publisher not identified], 1938.

MLA (9th ed.) Citation

Harris, John Edward. The Dorsal Spine of Cladoselache.: The Neurocranium and Jaws of Cladselache. [publisher not identified], 1938.