APA
India D. o. I., . (1992). All India income-tax statistics assessment year: 1989-90. New Delhi: Directorate of Income-Tax.
Chicago
India Directorate of Income-Tax, . 1992. All India income-tax statistics assessment year: 1989-90. New Delhi: Directorate of Income-Tax.
Harvard
India D. o. I., . (1992). All India income-tax statistics assessment year: 1989-90. New Delhi: Directorate of Income-Tax.
MLA
India Directorate of Income-Tax, . All India income-tax statistics assessment year: 1989-90. New Delhi: Directorate of Income-Tax. 1992.