APA (7th ed.) Citation

Chen, P. (1977). The entity-relationship approach to logical data base design. QED Information Sciences Inc.

Chicago Style (17th ed.) Citation

Chen, Peter. The Entity-relationship Approach to Logical Data Base Design. Wellesley, Mass: QED Information Sciences Inc, 1977.

MLA (9th ed.) Citation

Chen, Peter. The Entity-relationship Approach to Logical Data Base Design. QED Information Sciences Inc, 1977.

Warning: These citations may not always be 100% accurate.