Paul, V. (1976). This was sheep ranching: Yesterday and today. Superior Pub. Co..
Cita Chicago Style (17a ed.)Paul, Virginia. This Was Sheep Ranching: Yesterday and Today. Seattle: Superior Pub. Co., 1976.
Cita MLA (8a ed.)Paul, Virginia. This Was Sheep Ranching: Yesterday and Today. Superior Pub. Co., 1976.
Precaución: Estas citas no son 100% exactas.