Παραπομπή APA

Mcgraw-Hill. (2009). McGraw- Hill Encyclopedia of environmental science and engineering (3.).

Παραπομπή Chicago Style

Mcgraw-Hill. McGraw- Hill Encyclopedia of Environmental Science and Engineering. 3. McGraw-Hill Book Company, England, 2009.

Παραπομπή MLA

Mcgraw-Hill. McGraw- Hill Encyclopedia of Environmental Science and Engineering. 3. 2009.