TY  - BOOK
AU  - Piskurich, George M.
TI  - Self-directed Learning: a practical guide to design, development, and implementation 
SN  - 1-55542-532-1
U1  - 374.13943 P67 
PY  - 1993///
CY  - USA
PB  - Jossey-Bass Publishers
N1  - CoED; Bachelor of Elementary Education
ER  -