TY  - BOOK
AU  - David Crystal
AU  - Derek Davy
TI  - Advanced conversational english
T2  - Applied linguistics and language study
SN  - 0582550742
U1  - 428 C957a 
PY  - 1975///
CY  - London
PB  - Longman
KW  - English language -- Study and teaching -- Foreign speakers
KW  -  English language -- Conversation and phrase books
KW  -  English language -- Spoken English
KW  -  English language.
KW  - Spreektaal
KW  - Engels
ER  -