00578nam a2200169 a 450000500170000000800410001704100080005808200100006610000210007624500780009726400470017530000110022265000350023394200070026899900170027595201160029220260717090937.0260717s1974    ii            000 0 eng d  aeng04a530.51 aHancock, John C.13aAn introduction to the principle communication theory /cHancock, John C. 1aDelhi :bTata McGraw-hill pub. Co.,c1974.  a253 p. 4aPrinciple communication theory  cBK  c19370d19370  001040708DCaBKBCLbBKBCLd1978-03-30g32.50l0o530.5 HANp9025r2026-07-17 09:09:37v32.50w2026-07-17yBK