Lua APA (7ú heag.)
LEVY, C. K. (1982). ELEMENTS OF BIOLOGY (3a. ED.). READING, MNASS, ADDISON-WESLEY.
Lua i Stíl Chicago (17ú heag.)
LEVY, CHARLES K. ELEMENTS OF BIOLOGY. 3a. ED. [S.l.]: READING, MNASS, ADDISON-WESLEY, 1982.
Lua MLA (9ú heag.)
LEVY, CHARLES K. ELEMENTS OF BIOLOGY. 3a. ED. READING, MNASS, ADDISON-WESLEY, 1982.
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