Cita APA

Lillegraven, J. A., & Lillegraven, J. A. (1969). Article 50 (vertebrata 12): Latest cretaceous mammals of upper part of Edmonton formulation of Alberta, Canada, and review of Marsupial placental dichotomy in mammalian evolution. --. Kansas: University Paleontological Institute.

Citación estilo Chicago

Lillegraven, Jason A., y Jason A. Lillegraven. Article 50 (vertebrata 12): Latest Cretaceous Mammals of Upper Part of Edmonton Formulation of Alberta, Canada, and Review of Marsupial Placental Dichotomy in Mammalian Evolution. --. Kansas: University Paleontological Institute, 1969.

Cita MLA

Lillegraven, Jason A., y Jason A. Lillegraven. Article 50 (vertebrata 12): Latest Cretaceous Mammals of Upper Part of Edmonton Formulation of Alberta, Canada, and Review of Marsupial Placental Dichotomy in Mammalian Evolution. --. Kansas: University Paleontological Institute, 1969.