APA Style

Hitchcock,A.S. (1950). Manual of the Grasses of the United States (2nd Edition) . Washington,D.C: Government Printing Office Washington.

Chicago Style

Hitchcock,A.S. Manual of the Grasses of the United States (2nd Edition). Washington,D.C: Government Printing Office Washington, 1950. .

MLA Style

Hitchcock,A.S. Manual of the Grasses of the United States (2nd Edition). Washington,D.C: Government Printing Office Washington, 1950. .

Turabian Style

Hitchcock,A.S. Manual of the Grasses of the United States (2nd Edition). Washington,D.C: Government Printing Office Washington, 1950. .