Citazione Stile APA (7a Edizione)
Osburn, R. C. (1906). The Origin of the vertebrate limbs: Recent evidence upon this problem from Studies on primitive Sharks.
Citazione stile Chigago Style (17a edizione)
Osburn, Raymond C. The Origin of the Vertebrate Limbs: Recent Evidence upon This Problem from Studies on Primitive Sharks. New York, 1906.
Citatione MLA (9a ed.)
Osburn, Raymond C. The Origin of the Vertebrate Limbs: Recent Evidence upon This Problem from Studies on Primitive Sharks. 1906.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.