Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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