TY  - BOOK
AU  - Pearson,R.W.(Robert W.),ed
AU  - Boruch,Robert F.,ed
TI  - Survey research designs: towards a better understanding oftheir costs and benefits 
SN  - 3-540-96428-2
AV  - H62 S87
PY  - 1986///
CY  - Berlin
PB  - Springer-Verlag
ER  -