APA

International Trust for Zoological Nomenclature, International Union of Biological Sciences & Natural History Museum (London E. (1999). International code of zoological nomenclature =. London: International Trust for Zoological Nomenclature, c/o Natural History Museum.

Chicago

International Trust for Zoological Nomenclature, International Union of Biological Sciences and Natural History Museum (London England). 1999. International code of zoological nomenclature =. London: International Trust for Zoological Nomenclature, c/o Natural History Museum.

Harvard

International Trust for Zoological Nomenclature, International Union of Biological Sciences and Natural History Museum (London E. (1999). International code of zoological nomenclature =. London: International Trust for Zoological Nomenclature, c/o Natural History Museum.

MLA

International Trust for Zoological Nomenclature, International Union of Biological Sciences and Natural History Museum (London England). International code of zoological nomenclature =. London: International Trust for Zoological Nomenclature, c/o Natural History Museum. 1999.