TY  - BOOK
AU  - Sebastian,Federico B.
AU  - Villanueva,Antonia F.
AU  - Valle, Bartolome del.
TI  - Pampaaralang balarila ng wikang pambansa: ika-4 taon 
U1  - 499.2115 
PY  - 1971///
CY  - Quezon City
PB  - Bede's Pub. House, Inc.
KW  - Pilipino language
KW  - Grammar
ER  -