APA (7th ed.) Citation

McEwen, R. S. (1931). Vertebrate embryology: By Robert S. McEwen .. (Rev.). H. Holt and company.

Chicago Style (17th ed.) Citation

McEwen, Robert Stanley. Vertebrate Embryology: By Robert S. McEwen .. Rev. New York: H. Holt and company, 1931.

MLA (9th ed.) Citation

McEwen, Robert Stanley. Vertebrate Embryology: By Robert S. McEwen .. Rev. H. Holt and company, 1931.