BIOLOGY.. & SOLOMON, E. P. e. (1996). Biology.-- ed.4. Saunders College.
Cita Chicago (17th ed.)BIOLOGY.. i Eldra Pearl et.al SOLOMON. Biology.-- Ed.4. Philadelphia: Saunders College, 1996.
Cita MLA (9th ed.)BIOLOGY.. i Eldra Pearl et.al SOLOMON. Biology.-- Ed.4. Saunders College, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.