APA (7th ed.) Citation

Duellman, W. E., Lehr, E., & Aguilar, C. (2001). A new species of marsupial frog (Anura: Hylidae: Gastrotheca) from the Cordillera Azul in Peru. Natural History Museum, University of Kansas.

Chicago Style (17th ed.) Citation

Duellman, William E., Edgar Lehr, and César Aguilar. A New Species of Marsupial Frog (Anura: Hylidae: Gastrotheca) from the Cordillera Azul in Peru. Lawrence, Kan.: Natural History Museum, University of Kansas, 2001.

MLA (9th ed.) Citation

Duellman, William E., et al. A New Species of Marsupial Frog (Anura: Hylidae: Gastrotheca) from the Cordillera Azul in Peru. Natural History Museum, University of Kansas, 2001.