APA (7th ed.) Citation

Rickett, H. W. (1963). The new field book of American wild flowers. Putnam.

Chicago Style (17th ed.) Citation

Rickett, Harold William. The New Field Book of American Wild Flowers. New York: Putnam, 1963.

MLA (9th ed.) Citation

Rickett, Harold William. The New Field Book of American Wild Flowers. Putnam, 1963.