Gaya APA

Standard handbook of environmental science, health, and technology / edited by Jay H. Lehr, Janet K. Lehr, editor. (2000). : New York : McGraw-Hill.

Gaya MLA

Standard handbook of environmental science, health, and technology / edited by Jay H. Lehr, Janet K. Lehr, editor. . : New York : McGraw-Hill, 2000. Text.