Code international de nomenclature zoologique adopté par la xxe assemblée générale de l'Union Internationale des Sciences Biologiques = International code for zoological nomenclature adopted by the xx general assembly of the International Union of Biological Sciences
International Trust for Zoological Nomenclature Inglês
3rd
London ; Los Angeles : British Museum (Natural History) ; University of California Press : cop. 1985,
xx, 338, [1] p.; 22 cm