TY  - JOUR
PY  - 1976//
TI  - Certifications in occupational health and safety
JO  - American Industrial Hygiene Association journal
A1  - Gamble, J. H.
SP  - 677
EP  - 679
VL  - 37
IS  - 12
N2  - <p>[Abstract unavailable]</p> <p>Language: en</p> 
LA  - en
SN  - 0002-8894
UR  - http://dx.doi.org/
ID  - ref1
ER  -