DATE (C.J.), . (1995). An Introduction to Database Systems. New Delhi: Pearson Education Delhi, Harlow, Singapore.
DATE (C.J.), . 1995. An Introduction to Database Systems. New Delhi: Pearson Education Delhi, Harlow, Singapore.
DATE (C.J.), . An Introduction to Database Systems. New Delhi: Pearson Education Delhi, Harlow, Singapore. 1995.
