Klinckmann, E. (1970). Biology teacher's handbook (2nd ed.). John Wiley.
Lua i Stíl Chicago (17ú heag.)Klinckmann, Evelyn. Biology Teacher's Handbook. 2nd ed. New York: John Wiley, 1970.
Lua MLA (9ú heag.)Klinckmann, Evelyn. Biology Teacher's Handbook. 2nd ed. John Wiley, 1970.
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