TY  - BOOK
AU  - Markus,Gregory B.
TI  - Analyzing panel data / 
SN  - 0803913729
U1  - 300.28 
PY  - 1979///
CY  - Newbury : 
PB  - Sage Publishing, 
KW  - Social sciences
KW  - Statistical methods
N1  -  Includes bibliographical references
ER  -