Atienza, Loretta J. VTR workshop : small format video, / Loretta J. Atienza. - Paris : Unesco, 1977. - 114 p. : ill. ; 21 cm. - Monographs on communication technology and utilization 4. . Includes index and bibliography : p. 112. ISBN: 9231014676 Subjects--Topical Terms: Video tape recorders and recording.