TY  - BOOK
AU  - ENGLISH LENGUAJE SERVICES, INC.
TI  - ENGLISH BOOK FOUR: A BASIC COURSE FOUR
T2  - 0
U1  - 428 
PY  - 1970///
CY  - U.S.A.
PB  - THE MACMILLAN COMPANY
KW  - LINGUISTICA Y FILOSOFIA
N1  - INGLES-CURSO/LENGUAJE-SERVICIO
ER  -