APA
India.Directorate of Income Tax, . (1990). All India income-tax statistics assessment year 1989-90. New Delhi: Directorate of Income Tax.
Chicago
India.Directorate of Income Tax, . 1990. All India income-tax statistics assessment year 1989-90. New Delhi: Directorate of Income Tax.
Harvard
India.Directorate of Income Tax, . (1990). 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. 1990.