Communication and learning /
Powell, Leonard Sutherland.
Communication and learning / by Len S. Powell. - London : Pitman, 1969. - xii, 219 p. : 8 plates, illus., maps, plans. ; 25 cm.
Plans on lining papers.
Includes bibliographical references and index.
0273406973
\\\75408779
371.3
Communication and learning / by Len S. Powell. - London : Pitman, 1969. - xii, 219 p. : 8 plates, illus., maps, plans. ; 25 cm.
Plans on lining papers.
Includes bibliographical references and index.
0273406973
\\\75408779
371.3