APA

Schenk E. T., McMasters J. H., Keen A. M. & International Commission on Zoological Nomenclature. (1950). Procedure in taxonomy: including a reprint in translation of the Règles internationales de la nomenclature zoölogique (International code of zoölogical nomenclature) with titles and notes on the opinions rendered to the present date (1907 to 1947). Stanford, Calif: Stanford University Press.

Chicago

Schenk Edward T, McMasters John H, Keen A Myra and International Commission on Zoological Nomenclature. 1950. Procedure in taxonomy: including a reprint in translation of the Règles internationales de la nomenclature zoölogique (International code of zoölogical nomenclature) with titles and notes on the opinions rendered to the present date (1907 to 1947). Stanford, Calif: Stanford University Press.

Harvard

Schenk E. T., McMasters J. H., Keen A. M. and International Commission on Zoological Nomenclature. (1950). Procedure in taxonomy: including a reprint in translation of the Règles internationales de la nomenclature zoölogique (International code of zoölogical nomenclature) with titles and notes on the opinions rendered to the present date (1907 to 1947). Stanford, Calif: Stanford University Press.

MLA

Schenk Edward T, McMasters John H, Keen A Myra and International Commission on Zoological Nomenclature. Procedure in taxonomy: including a reprint in translation of the Règles internationales de la nomenclature zoölogique (International code of zoölogical nomenclature) with titles and notes on the opinions rendered to the present date (1907 to 1947). Stanford, Calif: Stanford University Press. 1950.