Cita APA (7a ed.)

Gressley, G. M. (1994). Old West/new West: Quo vadis? High Plains Pub..

Cita Chicago Style (17a ed.)

Gressley, Gene M. Old West/new West: Quo Vadis? Worland, Wyo.: High Plains Pub., 1994.

Cita MLA (8a ed.)

Gressley, Gene M. Old West/new West: Quo Vadis? High Plains Pub., 1994.

Precaución: Estas citas no son 100% exactas.