Gilreath, E. S. (1968). Experimental procedures in elementary qualitative analysis. McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Gilreath, Esmarch S. Experimental Procedures in Elementary Qualitative Analysis. McGraw Hill, 1968.
Lua MLA (8ú heag.)Gilreath, Esmarch S. Experimental Procedures in Elementary Qualitative Analysis. McGraw Hill, 1968.
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