Godfrey, H. (1910). A laboratory manual to accompany Godfrey's Elementary chemistry. Longmans, Green, and co..
Lua i Stíl Chicago (17ú heag.)Godfrey, Hollis. A Laboratory Manual to Accompany Godfrey's Elementary Chemistry. New York: Longmans, Green, and co., 1910.
Lua MLA (8ú heag.)Godfrey, Hollis. A Laboratory Manual to Accompany Godfrey's Elementary Chemistry. Longmans, Green, and co., 1910.
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