APA-viite (7. p.)

Pérez-Urbina, H., Horrocks, I., Motik, B., & Bernstein, A. (2009). Efficient Query Answering for OWL 2. Springer.

Chicago-viite (17. p.)

Pérez-Urbina, H., I. Horrocks, B. Motik, ja A. Bernstein. Efficient Query Answering for OWL 2. Springer, 2009.

MLA-viite (9. p.)

Pérez-Urbina, H., et al. Efficient Query Answering for OWL 2. Springer, 2009.