TY  - BOOK
AU  - Schwartz, J. E..
TI  - Elementary mathematics  pedagogical content knowledge.
SN  - 978-0-205-49375-3
U1  - 372.7 SCH 
PY  - 2008///
CY  - Boston
PB  - Pearson
N1  - Includes bibliographical references and index
ER  -