Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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