Enriquez, S. R. English as a second language / S. R. Enriquez and A. Veloro. - Revised edition. - [S.l.] : Philippine Book Company, 1979. - 110 pages : illustration ; 28 centimeter. Subjects--Topical Terms: English language--Study and teaching. Dewey Class. No.: FIL 420.7 En7 1979