APA (7th ed.) Citation

Gorman, K. J., Colunga, D., Headrick, R. W., & Paradice, D. (1990). An object-oriented semantic data model.

Chicago Style (17th ed.) Citation

Gorman, Kevin Joseph, Daniel Colunga, R. Wayne Headrick, and David Paradice. An Object-oriented Semantic Data Model. 1990.

MLA (9th ed.) Citation

Gorman, Kevin Joseph, et al. An Object-oriented Semantic Data Model. 1990.