Style de citation APA (7e éd.)

Crampton, H. E. (1916). Studies on the variation, distribution, and evolution of the genus partula. The Carnegie Institution of WAshington.

Style de citation Chicago (17e éd.)

Crampton, Henry Edward. Studies on the Variation, Distribution, and Evolution of the Genus Partula. Washington: The Carnegie Institution of WAshington, 1916.

Style de citation MLA (9e éd.)

Crampton, Henry Edward. Studies on the Variation, Distribution, and Evolution of the Genus Partula. The Carnegie Institution of WAshington, 1916.