APA (7th ed.) Citation

Harrington, H. D. (1954). Manual of the plants of Colorado: For the identification of the ferns and flowering plants of the State. Sage Books.

Chicago Style (17th ed.) Citation

Harrington, Harold David. Manual of the Plants of Colorado: For the Identification of the Ferns and Flowering Plants of the State. Denver: Sage Books, 1954.

MLA (9th ed.) Citation

Harrington, Harold David. Manual of the Plants of Colorado: For the Identification of the Ferns and Flowering Plants of the State. Sage Books, 1954.