APA (7th ed.) Citation

Emerton, J. H. (1961). The common spiders of the United States. Dover Publications.

Chicago Style (17th ed.) Citation

Emerton, J. H. The Common Spiders of the United States. New York: Dover Publications, 1961.

MLA (9th ed.) Citation

Emerton, J. H. The Common Spiders of the United States. Dover Publications, 1961.