Cable, Ralph.
Audio-visual handbook / Ralph Cable. - Salisbury : Capital printers, 1962. - 127, xxxx p. : ill. ; 20 cm.
Includes index.
91 91
Audio-visual education.
Labor economics.
371.33 / C112a
Audio-visual handbook / Ralph Cable. - Salisbury : Capital printers, 1962. - 127, xxxx p. : ill. ; 20 cm.
Includes index.
91 91
Audio-visual education.
Labor economics.
371.33 / C112a