Nixon, M. The Oxford book of vertebrates: Cyclostomes, fish, amphibians, reptiles , and mammals.
Chicago-viite (17. p.)Nixon, Marion. The Oxford Book of Vertebrates: Cyclostomes, Fish, Amphibians, Reptiles , and Mammals.
MLA-viite (9. p.)Nixon, Marion. The Oxford Book of Vertebrates: Cyclostomes, Fish, Amphibians, Reptiles , and Mammals.
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