World Health Organization creator text sz Geneva London] W.H.O. [H.M.S.O.] c1972 1972 monographic eng

print

vi, 144 p. ills., map. 28 cm. [edited by J. V. Smith and R. Pal]. Includes index Vector control Public health International cooperation RA639 .V43 1972 614.4/3 0119504189 73159167 DLC 730503 20220609104428.0 2672442