Heald, F. (1902). Laboratory manual in elementary biology. Willard N. Clute.
Cita Chicago Style (17a ed.)Heald, F.DF. Laboratory Manual in Elementary Biology. Binghamton, New York: Willard N. Clute, 1902.
Cita MLA (9a ed.)Heald, F.DF. Laboratory Manual in Elementary Biology. Willard N. Clute, 1902.
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