Gaya APA

ERBES, R, E. (1996). A PRACTICAL GUIDE TO AIR QUALITY COMPLIANCE (2 nd). New York: JOHN WILEY & SONS.

Gaya MLA

ERBES, Russell, E.. "A PRACTICAL GUIDE TO AIR QUALITY COMPLIANCE". 2 nd New York: JOHN WILEY & SONS, 1996. Textbook.