Cain, A. J. (1960). Animal species and their evolution. Harper and Brothers Publishers.
Citazione stile Chigago Style (17a edizione)Cain, Arthur James. Animal Species and Their Evolution. London: Harper and Brothers Publishers, 1960.
Citatione MLA (9a ed.)Cain, Arthur James. Animal Species and Their Evolution. Harper and Brothers Publishers, 1960.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.