TY  - BOOK
AU  - Bowden, Roger J
AU  - Turkington, Darrell A
TI  - Instrumental variables
SN  - 9780521385824
SN  - 84007802
U1  - 519.535 BOW 
PY  - 2007///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Instrumental variables (Statistics)
N1  - Includes bibliographical references and index
ER  -