Overhead projection /
Sparks, Jerry D.
Overhead projection / Jerry D. Sparks. - Englewood Cliffs, N.J. : Educational Technology Publications, c1981. - viii, 95 p. : ill. ; 24 cm. - The Instructional media library ; v. no. 10 .
Bibliography: p. 93-95.
0877781702
\\\80021334
371.3/35
Overhead projection / Jerry D. Sparks. - Englewood Cliffs, N.J. : Educational Technology Publications, c1981. - viii, 95 p. : ill. ; 24 cm. - The Instructional media library ; v. no. 10 .
Bibliography: p. 93-95.
0877781702
\\\80021334
371.3/35