Hughes, D. T. D. (David Treharne Dillon) Tropical health science human and social biology by D.T.D. Hughes and P.T. Marshall - 2nd ed - London Cambridge University Press 1974 - 192p ill, facsim, map 24cm Pbk Index ISBN: 052120304X Subjects--Topical Terms: PhysiologyHygieneTropical medicine Subjects--Geographic Terms: Tropics--Diseases and hygiene