APA
Pough F. H., . (1999). Vertebrate Life. New Delhi: Prentice Hall.
Chicago
Pough F H, . 1999. Vertebrate Life. New Delhi: Prentice Hall.
Harvard
Pough F. H., . (1999). Vertebrate Life. New Delhi: Prentice Hall.
MLA
Pough F H, . Vertebrate Life. New Delhi: Prentice Hall. 1999.