A checklist of the herpetofauna of Guatemala.
Ann Arbor: Museum of Zoology, University of Michigan, 1963. Octavo, map, softcover. Miscellaneous Publications, Museum of Zoology, University of Michigan, No. 122. More
Ann Arbor: Museum of Zoology, University of Michigan, 1963. Octavo, map, softcover. Miscellaneous Publications, Museum of Zoology, University of Michigan, No. 122. More
Ann Arbor: University of Minnesota Press, 1963. Octavo, photographs, text illustraions, softcover. Miscellaneous Publications, Museum of Zoology, University of Michigan, number 49. More