Gaya APA

Cassell, K, A., Hiremath, U. (2018). Reference and information services : an introduction / fourth edition (4). Chicago: ALA Neal-Schuman.

Gaya MLA

Cassell, Kay, Ann., Hiremath, Uma. "Reference and information services : an introduction / fourth edition". 4 Chicago: ALA Neal-Schuman, 2018. Text.