Cita APA (7a ed.)

Hitchcock, A. S., & Chase, A. (1950). Manual of the grasses of the United States (2nd ed. / revised by Agnes Chase.). United States Government Printing Office.

Cita Chicago Style (17a ed.)

Hitchcock, A. S., y Agnes Chase. Manual of the Grasses of the United States. 2nd ed. / revised by Agnes Chase. Washington: United States Government Printing Office, 1950.

Cita MLA (9a ed.)

Hitchcock, A. S., y Agnes Chase. Manual of the Grasses of the United States. 2nd ed. / revised by Agnes Chase. United States Government Printing Office, 1950.