Dyfyniad APA

C J Date. (1981). An Introduction to Database Systems (3.). Narosa publishing hosue.

Dyfyniad Arddull Chicago

C J Date. An Introduction to Database Systems. 3. Narosa publishing hosue, 1981.

Dyfyniad MLA

C J Date. An Introduction to Database Systems. 3. Narosa publishing hosue, 1981.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.