Mansfield, W. (1919). Squibb's atlas of the official drugs. E. R. Squibb & sons.
Lua i Stíl Chicago (17ú heag.)Mansfield, William. Squibb's Atlas of the Official Drugs. New York: E. R. Squibb & sons, 1919.
Lua MLA (8ú heag.)Mansfield, William. Squibb's Atlas of the Official Drugs. E. R. Squibb & sons, 1919.
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