TY  - BOOK
AU  - Ackert, Patricia
AU  -  Bernard, Jean
AU  -  Navarro, Nicki Giroux de
TI  - Cause & effect 
SN  - 0-8384-0874-5.
AV  - PE1128.A296 
CY  - Boston
KW  -  Readers
KW  - English language
KW  - English language--Textbooks for foreign speakers
ER  -