Individual Slip, National Industrial Classification, National Classification of Occupations, List of a few typical household industries, Sampling procedure adopted in 1981 Census, Main workers, marginal workers and non-workers classified by age and sex, non-city urban areas classified by age and sex, sex and literacy Urban, educational level and sex, Other work of main workers and work of marginal workers by broad categroy cross-classified by main activity, Marginal workers by industrial category, age and sex, Marginal workers by industrial category and non-workers by education level and sex-Rural, Female main workers classified by industrial category, age and marital status, Industria classification of main workers other than cultivators and agricultural labourers by sex and by divisions, major groups and minor groups.