Gastropoda of the 1962 University of Colorado Museum expedition in Mexico
Data on mountain environments: II. Front Range, Colorado, four climax regions, 1953-1958
Chironomids and other invertebrates from north Boulder Creek, Colorado
An annotated check list of the amphibians and reptiles of Colorado
Cytotaxonomy of the alpine vascular plants of Mount Washington
Comparative limnology of eight Colorado mountain lakes
Kalanchoe tubiflora as influenced by radiation
Additions to the flora of Colorado - III
Additions to the flora of Colorado - IV
Summary of the distribution of the herpetofauna of Colorado: A supplement to "An annotated check list of the amphibians and reptiles of Colorado"
