Harrington, John M Occupational health / J.M. Harrington ... [et al.] ; in collaboration with Gillian Howard ... [et al.]. - 4th ed. - Oxford : Blackwell Science, 1998. - vii, 423 p. : ill. ; 21 cm. - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant . - Pocket consultant .