Bumblebees and their ways
By: by Otto Emil Plath ... with a foreword by William Morton Wheeler ...
Publisher: The Macmillan company
Published: 1934
Place of publication: New York
Language: eng
Number of pages: 201
Subjects: Bumblebees.; Insects -- North America.
Notes: Presents the results of a study of genus Bombus and genus Psithyrus.

Bibliography: p. 177-194.