Cita APA (7a ed.)

Date, C. (1981). An Introduction to database systems (3rd ed.). Narosa.

Cita Chicago Style (17a ed.)

Date, C.J. An Introduction to Database Systems. 3rd ed. New Delhi: Narosa, 1981.

Cita MLA (9a ed.)

Date, C.J. An Introduction to Database Systems. 3rd ed. Narosa, 1981.