TY  - BOOK
AU  - Posecion, Ofelia T.
AU  - Go, M.; Albano, H.
TI  - Language research : : principles and application 
SN  - 971-685-727-6
AV  - 418 P84l 
PY  - 2011///
CY  - Quezon City
PB  - Lorimar Pub
N1  - Includes bibliography
ER  -