1. ......................
Author: Clay, Henry Hurrell
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: Hygiene, Public-Handbooks, manuals, etc
Classification :
RA
425
.
C52
1965
2. Clay's public health inspector's handbook, a manuel for public health officers
Author: Clay, Henry Hurrell
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: Hygiene, Public - Handbooks, manuals, etc
Classification :
RA
425
.
C52
1972
