Cita APA

Conningham,William P, & Saigo Barbara Woodworth. (1990). Environmental science: A global concern. Brown Publishers.

Chicago Edition Citation

Conningham,William P, i Saigo Barbara Woodworth. Environmental Science: A Global Concern. Boston: Brown Publishers, 1990.

Cita MLA

Conningham,William P, i Saigo Barbara Woodworth. Environmental Science: A Global Concern. Brown Publishers, 1990.

Atenció: Aquestes cites poden no estar 100% correctes.