APA (7th ed.) Citation

Pinkerton, R. E. (1955). Nature roundup ([1st ed.].). Harper.

Chicago Style (17th ed.) Citation

Pinkerton, Robert Eugene. Nature Roundup. [1st ed.]. New York: Harper, 1955.

MLA (9th ed.) Citation

Pinkerton, Robert Eugene. Nature Roundup. [1st ed.]. Harper, 1955.