00353nam a22001457a 4500020001500000082001300015100001800028245004800046250000800094260003000102300001100132650002300143654002300166700001800189  a0723606188  a613bGAR  aGardner, Ward  aCurrent approaches to occupational health 2  aNil  aBristolbWright PSGc1982  a396 p.  aCommunity Medicine  aCommunity Medicine  aGardner, Ward