TY  - BOOK
AU  - Trager,Edith Crowell
AU  - Henderson,Sara Cook
TI  - The PD's: pronunciation drills for learners of English 
SN  - 0877890080
AV  - PE 1128 T765p 1956
PY  - 1956///
CY  - Culver City, CA
PB  - ELS Publications
KW  - English language
KW  - Textbooks for foreign speakers
KW  - Pronunciation
KW  - Sound recordings for foreigners
KW  - CFB
KW  - Colección Font Bernard
ER  -