APA (7th ed.) Citation

Barton, R. (1961). How to watch birds (Rev.). Cornerstone Library.

Chicago Style (17th ed.) Citation

Barton, Roger. How to Watch Birds. Rev. New York: Cornerstone Library, 1961.

MLA (9th ed.) Citation

Barton, Roger. How to Watch Birds. Rev. Cornerstone Library, 1961.

Warning: These citations may not always be 100% accurate.