APA-viite

Chopra, D. S. (1979). Payment of gratuity act , 1972 (2nd ed.). Eastern law house.

Chicago-tyylinen lähdeviittaus

Chopra, D S. Payment of Gratuity Act , 1972. 2nd ed. Calcutta: Eastern law house, 1979.

MLA-viite

Chopra, D S. Payment of Gratuity Act , 1972. 2nd ed. Eastern law house, 1979.