TY  - BOOK
AU  - Lorbeer,George C.
TI  - Instructional aids: how to make and use them
AV  - LB1027 .N37 1958
U1  - 371.33/5 
PY  - 1958///]
CY  - Dubuque, Iowa
PB  - W. C. Brown Co.
KW  - Teaching
KW  - Aids and devices
KW  - Local
N1  - Includes bibliographical references
ER  -