Hunter, G. W., & Valentine, M. C. (1907). Laboratory manual of biology (2nd ed., rev.). Henry Holt and Co..
Lua i Stíl Chicago (17ú heag.)Hunter, George W., agus Morris Crawford Valentine. Laboratory Manual of Biology. 2nd ed., rev. New York: Henry Holt and Co., 1907.
Lua MLA (8ú heag.)Hunter, George W., agus Morris Crawford Valentine. Laboratory Manual of Biology. 2nd ed., rev. Henry Holt and Co., 1907.
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