Ratan, Vidya.
A guide to preventive and social medicine / Vidya Ratan. - 3rd ed. - Delhi : Jaypee Brothers, c 1977. - xiv, 272 p. : ill. ; 22 cm.
Includes index.
319 319
Preventive Medicine.
614 / V688g
A guide to preventive and social medicine / Vidya Ratan. - 3rd ed. - Delhi : Jaypee Brothers, c 1977. - xiv, 272 p. : ill. ; 22 cm.
Includes index.
319 319
Preventive Medicine.
614 / V688g