TY  - BOOK
AU  - Sapsford,Roger
AU  - Jupp,Victor
TI  - Data collection and analysis
SN  - 0761950451
CY  - London
PB  - Sage publications, 1996.
KW  - Social sciences
KW  - Statistical methods
KW  - Research
N1  - Includes bibliographical references (p. [343]-352) and index
ER  -