Parkes, E. A., & Notter, J. L. (1891). A manual of practical hygiene (8th ed.). J. & A. Churchill.
Lua i Stíl Chicago (17ú heag.)Parkes, Edmund Alexander, agus James Lane Notter. A Manual of Practical Hygiene. 8th ed. London: J. & A. Churchill, 1891.
Lua MLA (8ú heag.)Parkes, Edmund Alexander, agus James Lane Notter. A Manual of Practical Hygiene. 8th ed. J. & A. Churchill, 1891.
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