TY  - BOOK
AU  - Leppien,Jann H.
AU  - Purcell,Jeanne H.
TI  - Parallel curriculum units for science, grades 6-12
PY  - 2011///
CY  - Thosand Oaks, California
PB  - Corwin
KW  - Science
KW  - Study and teaching (middle school)
KW  - Study and teaching (secondary)
ER  -