Dyfyniad APA

Betts, E. A., & Garst, S. (1949). Teacher's guide to Cowboys and cattle trails. Wheeler Publishing Company.

Dyfyniad Arddull Chicago

Betts, Emmett A., and Shannon Garst. Teacher's Guide to Cowboys and Cattle Trails. Chicago: Wheeler Publishing Company, 1949.

Dyfyniad MLA

Betts, Emmett A., and Shannon Garst. Teacher's Guide to Cowboys and Cattle Trails. Wheeler Publishing Company, 1949.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.