Kunz, W. (2012). Do species exist?: Principles of taxonomic classification. Wiley-Blackwell.
Cita Chicago Style (17a ed.)Kunz, Werner. Do Species Exist?: Principles of Taxonomic Classification. Weinheim: Wiley-Blackwell, 2012.
Cita MLA (9a ed.)Kunz, Werner. Do Species Exist?: Principles of Taxonomic Classification. Wiley-Blackwell, 2012.
Precaución: Estas citas no son 100% exactas.