TY  - BOOK
AU  - Popham,W.James
TI  - Modern educational measurement: a practitioner's perspective 
SN  - 0-13-593898-8
AV  - LB3051 P66 1990
PY  - 1990///
CY  - Boston
PB  - Allyn and Bacon
N1  - Incluye bibliografia
ER  -