Clay's handbook of environmental health
Clay, Henry H.(Henry Hurrell)
Davies, F. G.(Frederick Gerald),1905-
Bassett, W. H.
Clay, Henry H.(Henry Hurrell).Clay's public health inspector's handbook.
London H.K. Lewis
1977
Previous ed.: published as 'Clay's public health inspector's handbook' / revised by F.G. Davies. 1972
Includes bibliographies and index
Public health.