Παραπομπή APA

Croft, B. W., Metzler, D., & Strohman, T. (2010). Search engines: Information retrieval in practice. Pearson education.

Παραπομπή Chicago Style

Croft, Bruce W., Donald Metzler, και Trevor Strohman. Search Engines: Information Retrieval in Practice. Boston: Pearson education, 2010.

Παραπομπή MLA

Croft, Bruce W., et al. Search Engines: Information Retrieval in Practice. Pearson education, 2010.