APA
(1998). Journal of occupational and Environment medicine. Los Angeles: American college of Occupational and Environment medicine.
Chicago
1998. Journal of occupational and Environment medicine. Los Angeles: American college of Occupational and Environment medicine.
Harvard
(1998). Journal of occupational and Environment medicine. Los Angeles: American college of Occupational and Environment medicine.
MLA
Journal of occupational and Environment medicine. Los Angeles: American college of Occupational and Environment medicine. 1998.
