TY  - BOOK
AU  - Menard Scott
TI  - Longitudinal reseach
T2  - Quantitative Applications in the social Science, 76
U1  - B280bE, N1 
PY  - 1991///
CY  - London
PB  - Sage Publications         
KW  - Statistics
N1  - Bibliography:P78-80
ER  -