Walter, W. G. (1967). Standard methods for examination of dairy products (12a. ed.). American Public Health Association.
Lua i Stíl Chicago (17ú heag.)Walter, William G. Standard Methods for Examination of Dairy Products. 12a. ed. Nueva York: American Public Health Association, 1967.
Lua MLA (9ú heag.)Walter, William G. Standard Methods for Examination of Dairy Products. 12a. ed. American Public Health Association, 1967.
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