APA (7th ed.) Citation

De Virgilio, R., Guerra, F., & Velegrakis, Y.. (2012). Semantic search over the web. Springer.

Chicago Style (17th ed.) Citation

De Virgilio, Roberto, Francesco Guerra, and Yannis Velegrakis. Semantic Search over the Web. Heidelberg [Germany] ; New York: Springer, 2012.

MLA (9th ed.) Citation

De Virgilio, Roberto, et al. Semantic Search over the Web. Springer, 2012.