Communication planning revisited /
Hancock, Alan, fl. 1965-
Communication planning revisited / Alan Hancock. - Paris : UNESCO, 1992. - 220 p. : ill. ; 24 cm. - Monographs on communication planning ; 5 .
9231027549
Communication planning.--------
Communication planning revisited / Alan Hancock. - Paris : UNESCO, 1992. - 220 p. : ill. ; 24 cm. - Monographs on communication planning ; 5 .
9231027549
Communication planning.--------