Roberts, M. B. V. Biology: A functional approach (4th ed.).
Cita Chicago (17th ed.)Roberts, M. B. V. Biology: A Functional Approach. 4th ed.
Cita MLA (9th ed.)Roberts, M. B. V. Biology: A Functional Approach. 4th ed.
Atenció: Aquestes cites poden no estar 100% correctes.