Cita APA (7a ed.)
Ørvig, T. (1968). Current Problems of lower vertebrate phylogeny: Proceedings of the 4. Nobel Symposium, held in June 1967 at the Swedish Museum of Natural History in Stockholm. Almquist & Wiksell.
Cita Chicago Style (17a ed.)
Ørvig, Tor. Current Problems of Lower Vertebrate Phylogeny: Proceedings of the 4. Nobel Symposium, Held in June 1967 at the Swedish Museum of Natural History in Stockholm. Stockholm: Almquist & Wiksell, 1968.
Cita MLA (9a ed.)
Ørvig, Tor. Current Problems of Lower Vertebrate Phylogeny: Proceedings of the 4. Nobel Symposium, Held in June 1967 at the Swedish Museum of Natural History in Stockholm. Almquist & Wiksell, 1968.
Precaución: Estas citas no son 100% exactas.