Dyfyniad APA

Tolman, W. H., Guthrie, A. W., & Crampton, C. W. (1912). Hygiene for the worker. American Book Co..

Dyfyniad Arddull Chicago

Tolman, William Howe, Adelaide Wood Guthrie, and C. Ward Crampton. Hygiene for the Worker. New York: American Book Co., 1912.

Dyfyniad MLA

Tolman, William Howe, et al. Hygiene for the Worker. American Book Co., 1912.

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