TY  - BOOK
AU  - Langenbach,Michael
AU  - Vughn,Courtney
AU  - Aagaard,Lola
TI  - An introduction to educational research
SN  - 0205139027
PY  - 1994///
CY  - Boston, MA
PB  - Allyn and Bacon
KW  - Education
KW  - Research
N1  - Includes bibliographical references and index
ER  -