A model for predicting the unit cost of developing self-instructional materials in higher education biological and physical sciences /
by Walter Grove Chappell.
APA Citation
Chappell, W. Grove. (1970). A model for predicting the unit cost of developing self-instructional materials in higher education biological and physical sciences. .
MLA Citation
Chappell, Walter Grove, 1941-. A Model for Predicting the Unit Cost of Developing Self-instructional Materials In Higher Education Biological And Physical Sciences. , 1970.
Warning: These citations may not always be complete (especially for serials).