APA

Langer P., . (1988). Mammalian herbivore stomach:comparative anatomy, function and evolution, the. Stuttgart: Gustav Fischer.

Chicago

Langer Peter, . 1988. Mammalian herbivore stomach:comparative anatomy, function and evolution, the. Stuttgart: Gustav Fischer.

Harvard

Langer P., . (1988). Mammalian herbivore stomach:comparative anatomy, function and evolution, the. Stuttgart: Gustav Fischer.

MLA

Langer Peter, . Mammalian herbivore stomach:comparative anatomy, function and evolution, the. Stuttgart: Gustav Fischer. 1988.