APA Format
Levy, Barry S.; Wegman, David H. . (). Occupational Health : recognizing and preventing work related diseases. :
MLA Format
Levy, Barry S.; Wegman, David H. . Occupational Health : recognizing and preventing work related diseases. : ,
Australian/Harvard Format
Levy, Barry S.; Wegman, David H. . . Occupational Health : recognizing and preventing work related diseases. , 
Warning: These citations may not always be 100% accurate.