Illinois birds
Subtitle: Hirundinidae
By: Richard R. Graber, Jean W. Graber, Ethelyn L. Kirk.
Contributors: Graber, Jean Weber, 1924-; Kirk, Ethelyn L.; Illinois. Natural History Survey Division
Series: Biological notes -- no. 80
Publisher: State of Illinois, Dept. of Registration and Education, Natural History Survey Division
Published: 1972
Place of publication: Urbana
Language: eng
Number of pages: 36
Subjects: Swallows -- Illinois
Notes: Cover title.

"August 1972."

Bibliography: p. 35-36.