Cita APA

Avila, V. L. (1995). Biology: Investigating life on earth. Boston: Jones and Bartlett.

Chicago Style Citation

Avila, Vernon L. Biology: Investigating Life On Earth. Boston: Jones and Bartlett, 1995.

Cita MLA

Avila, Vernon L. Biology: Investigating Life On Earth. Boston: Jones and Bartlett, 1995.

Atenció: Aquestes cites poden no estar 100% correctes.