Pruthi, S Pattern and role of informal communication in R & D - New Delhi: Center for Study of Science, Technology & Development, Council of Scientific & Industrial Research, 1978 - 49p. - Study report series 1/78 . Subjects--Topical Terms: Communication Subjects--Index Terms: Informal communication technology science Universal Decimal Class. No.: D 007:5/6.001.5/.6 / L8