00531nam a22001697a 4500 BD-DhUL 20170423163852.0 170423b1976 b ||||| |||| 00| 0 eng d BD-DhUL BD-DhUL 613.443 NAD Nazrul Islam Diffusion of innovations in birth control devices a study in rural-urban contrast a study in rural-urban contrast University Grants Commission 1976 43p. ; 28 cm. Diffusion of innovations ddc REF 191465 191465 0 0 ddc 0 613_443000000000000_NAD 1 REF 327998 DUL DUL RC 2017-04-23 613.443 NAD 321032 2017-04-23 3 2017-04-23 REF