Cita APA (7a ed.)
Levene, M. (2006). An Introduction to Search Engines and Web Navigation (1. vyd.). Pearson Education Limited.
Cita Chicago Style (17a ed.)
Levene, Mark. An Introduction to Search Engines and Web Navigation. 1. vyd. Harlow: Pearson Education Limited, 2006.
Cita MLA (9a ed.)
Levene, Mark. An Introduction to Search Engines and Web Navigation. 1. vyd. Pearson Education Limited, 2006.
Precaución: Estas citas no son 100% exactas.