APA-viite

Gupta, R. R., & Gupta, V. S. (1968). Income-tax: Law and practice (27th ed.). Agra Book Store.

Chicago-tyylinen lähdeviittaus

Gupta, Rup Ram, ja Vishnu Saran Gupta. Income-tax: Law and Practice. 27th ed. Agra: Agra Book Store, 1968.

MLA-viite

Gupta, Rup Ram, ja Vishnu Saran Gupta. Income-tax: Law and Practice. 27th ed. Agra Book Store, 1968.