Gaya APA

BERNSTEIN, R, B, S. (1982). BIOLOGY : THE STUDY OF LIFE . NEW YORK: HARCOURT BRACE JOVANOVICH.

Gaya MLA

BERNSTEIN, RUTH, BERNSTEIN,, STEPHEN. "BIOLOGY : THE STUDY OF LIFE". NEW YORK: HARCOURT BRACE JOVANOVICH, 1982. Text.