Dyfyniad APA

Willgoose, C. E. (1979). Environmental health commitment for survival. W B Saunders.

Dyfyniad Arddull Chicago

Willgoose, Carl E. Environmental Health Commitment for Survival. Philadelphia: W B Saunders, 1979.

Dyfyniad MLA

Willgoose, Carl E. Environmental Health Commitment for Survival. W B Saunders, 1979.

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