Cita APA (7a ed.)

Tyler, B., & Hayes, J. (1985). Descriptor list for forage grasses. IBPGR.

Cita Chicago Style (17a ed.)

Tyler, B.F, y J.D Hayes. Descriptor List for Forage Grasses. Rome: IBPGR, 1985.

Cita MLA (8a ed.)

Tyler, B.F, y J.D Hayes. Descriptor List for Forage Grasses. IBPGR, 1985.