Cita APA (7a ed.)

Cunningham, W. P. (2007). Environmental scienceA global concernWilliam Cunning, Mary Ann Cunningham, Barbara Woodworth Saigo. Higher Education.

Cita Chicago Style (17a ed.)

Cunningham, William P. Environmental ScienceA Global ConcernWilliam Cunning, Mary Ann Cunningham, Barbara Woodworth Saigo. Higher Education, 2007.

Cita MLA (8a ed.)

Cunningham, William P. Environmental ScienceA Global ConcernWilliam Cunning, Mary Ann Cunningham, Barbara Woodworth Saigo. Higher Education, 2007.