Comstock, John Henry.
An introduction to entomology / by John Henry Comstock. - 9th ed. rev. - Ithaca, NY : Cornell University Press, 1920. - xix, 1064 p. : ill.
Entomology.
An introduction to entomology / by John Henry Comstock. - 9th ed. rev. - Ithaca, NY : Cornell University Press, 1920. - xix, 1064 p. : ill.
Entomology.