Dyfyniad APA

Mansfield, W. (1919). Squibb's atlas of the official drugs. E. R. Squibb & sons.

Dyfyniad Arddull Chicago

Mansfield, William. Squibb's Atlas of the Official Drugs. New York: E. R. Squibb & sons, 1919.

Dyfyniad MLA

Mansfield, William. Squibb's Atlas of the Official Drugs. E. R. Squibb & sons, 1919.

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