Gaya APA
SNASHALL, D., PATEL, D. (2003).
ABC OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE Second Edition .
London:
BMJ Publishing Group.
Gaya MLA
SNASHALL, DAVID., PATEL, DIPTI.
"ABC OF OCCUPATIONAL AND ENVIRONMENTAL MEDICINE Second Edition".
London:
BMJ Publishing Group,
2003.
E-Book.