Croft, W. B. (2010). Search engines: Information retrieval in practice (International Edition.). Pearson.
Chicago-viite (17. p.)Croft, William Bruce. Search Engines: Information Retrieval in Practice. International Edition. Upper Saddle River, NJ: Pearson, 2010.
MLA-viite (9. p.)Croft, William Bruce. Search Engines: Information Retrieval in Practice. International Edition. Pearson, 2010.
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