Cita APA (7a ed.)

Oram, R. F. (1976). Biology: Living systems (2a. ed.). Charles E. Merrill.

Cita Chicago Style (17a ed.)

Oram, Raymond F. Biology: Living Systems. 2a. ed. Columbus: Charles E. Merrill, 1976.

Cita MLA (9a ed.)

Oram, Raymond F. Biology: Living Systems. 2a. ed. Charles E. Merrill, 1976.