APA (7e ed.) Bronvermelding

Harlow, W. M. (1957). Trees of the eastern and central United States and Canada. Dover.

Chicago (17e ed.) Bronvermelding

Harlow, William M. Trees of the Eastern and Central United States and Canada. Nueva York: Dover, 1957.

MLA (9e ed.) Bronvermelding

Harlow, William M. Trees of the Eastern and Central United States and Canada. Dover, 1957.