Gaya APA

Environmental field testing and analysis ready reference handbook / Donal A. Drum, Shari L. Bauman, Gershon J. Shugar. (2001). : New Yorkb : McGraw-Hill.

Gaya MLA

Environmental field testing and analysis ready reference handbook / Donal A. Drum, Shari L. Bauman, Gershon J. Shugar. . : New Yorkb : McGraw-Hill, 2001. Text.