APA (7th ed.) Citation

Hitchcock, C. L. (1937). A key to the grasses of Montana: Based upon vegetative characters. Swift.

Chicago Style (17th ed.) Citation

Hitchcock, C. Leo. A Key to the Grasses of Montana: Based upon Vegetative Characters. St. Louis: Swift, 1937.

MLA (9th ed.) Citation

Hitchcock, C. Leo. A Key to the Grasses of Montana: Based upon Vegetative Characters. Swift, 1937.