TY  - BOOK
AU  - Gess- Newsome Julie Ed.
AU  -  Lederman Norman G Ed.
TI  - Examiniing pedagogical content knowledge: The construct and its implications for science education
T2  - Science and Technology Education Library; Vol. 6
SN  - 978-0-14310-305-9
PY  - 1999///
CY  - Dordrecht 
PB  - Kluwer Academic Publishers
ER  -