APA aipamena

SCHEFLER,William.C. (1976). BIOLOGY: PRINCIPLES AND ISSUES. ADDISON-WESLEY publishing company.

Chicago Style aipamena

SCHEFLER,William.C. BIOLOGY: PRINCIPLES AND ISSUES. USA: ADDISON-WESLEY publishing company, 1976.

MLA aipamena

SCHEFLER,William.C. BIOLOGY: PRINCIPLES AND ISSUES. ADDISON-WESLEY publishing company, 1976.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.