311.2
I39N
               NSS 44th round: July 1988-June 1989 socio economic survey: instructions to field staff - Rev. - New Delhi : The Author, 1988.
               2v (V.p)
                Contents: v.2. Schedules of enquiry -v.1. Design, concepts, definitions and procedures

C1167
C1168
                Subjects: Sampling (Statistics); Economic surveys.