APA (7th ed.) Citation

Glassberg, J. (1993). Butterflies through binoculars: A field guide to butterflies in the Boston, New York, Washington region. Oxford University Press.

Chicago Style (17th ed.) Citation

Glassberg, Jeffrey. Butterflies Through Binoculars: A Field Guide to Butterflies in the Boston, New York, Washington Region. New York: Oxford University Press, 1993.

MLA (9th ed.) Citation

Glassberg, Jeffrey. Butterflies Through Binoculars: A Field Guide to Butterflies in the Boston, New York, Washington Region. Oxford University Press, 1993.