APA (7th ed.) Citation

Rydberg, P. A. (1897). Report upon the grasses and forage plants of the rocky mountain region. Gov. Print. Off.

Chicago Style (17th ed.) Citation

Rydberg, Per Axel. Report upon the Grasses and Forage Plants of the Rocky Mountain Region. Washington: Gov. Print. Off, 1897.

MLA (9th ed.) Citation

Rydberg, Per Axel. Report upon the Grasses and Forage Plants of the Rocky Mountain Region. Gov. Print. Off, 1897.