TY  - BOOK
AU  - Hartley,James
TI  - Designing instructional text
SN  - 0850380987
U1  - 070.5 
PY  - 1978///
CY  - London UK: 
PB  - Kogan Page
KW  - Textbooks - Authorship
KW  - Teaching - Aids and devices
KW  - Printing - Style manuals
ER  -