APA (7th ed.) Citation

Flenner, H., O'Carroll, L., & Vogel, W. (1999). Joins and intersections. Springer.

Chicago Style (17th ed.) Citation

Flenner, H., L. O'Carroll, and Wolfgang Vogel. Joins and Intersections. Berlin ; New York: Springer, 1999.

MLA (9th ed.) Citation

Flenner, H., et al. Joins and Intersections. Springer, 1999.