Robertson, S. E. (1978). Indexing Theory and Retrieval Effectiveness.
Cita Chicago Style (17a ed.)Robertson, Stephen E. Indexing Theory and Retrieval Effectiveness. 1978.
Cita MLA (9a ed.)Robertson, Stephen E. Indexing Theory and Retrieval Effectiveness. 1978.
Precaución: Estas citas no son 100% exactas.