TY  - BOOK
AU  - Wiggins,Grant P.
TI  - The understanding by design guide to creating high-quality units
SN  - 9781416611493 (pbk. : alk. paper)
AV  - LB2806.15 .W54 2011 .W545 2011
U1  - 375/.001 22
PY  - 2011///
CY  - Alexandria, Va.
PB  - ASCD
ER  -