Manual of the families and genera of the North American Diptera
By: by Samuel W. Williston.
Edition: 2nd ed., rewritten and enl.
Series: CIHM/ICMH Microfiche series -- no. 28152
Publisher: J.T. Hathaway
Published: 1983
Place of publication: New Haven [Conn.]
Language: eng
Format: Microform
Number of pages: 119
Subjects: Diptera -- North America.
Notes: Includes index.

Bibliography: p. [xxxiii]-liv.

Filmed from a copy of the original publication held by the Entomology Research Library, Agriculture Canada. Ottawa : Canadian Institute for Historical Microreproductions, 1983.