Cita APA (7a ed.)

Gottlob, G., Koch, C., & Schulz, K. (2006). Conjunctive Queries over Trees.

Cita Chicago Style (17a ed.)

Gottlob, G., C. Koch, y K. Schulz. Conjunctive Queries over Trees. 2006.

Cita MLA (9a ed.)

Gottlob, G., et al. Conjunctive Queries over Trees. 2006.