TY  - BOOK
AU  -  Charles M. Reigeluth; Brian J. Beatty; Rodney D. Myers 
TI  - Instructional-Design Theories and Models, Volume IV
SN  - 9781315795478
PB  - Taylor and Francis
UR  - http://www.taylorfrancis.com/books/9781315795478
ER  -