Cita APA

Easton, T. A. (2010). Environmental issues. Boston: McGraw-Hill.

Chicago Style Citation

Easton, Thomas A. Environmental Issues. Boston: McGraw-Hill, 2010.

Cita MLA

Easton, Thomas A. Environmental Issues. Boston: McGraw-Hill, 2010.

Atenció: Aquestes cites poden no estar 100% correctes.