TY  - BOOK
AU  - Gibson, John et al
AU  - World Bank
TI  - What Does Variation in Survey Design Reveal about the Nature
PY  - 2013///
CY  - Washington DC
PB  - World Bank
UR  - http://elibrary.igidr.ac.in/e-library/working papers/World Bank/PRWP/2013/E9457.pdf
ER  -