APA način citiranja

Okobi, E. A. R. H. (2014). Library services for adults in the 21st century. Santa Barbara, California: Libraries Unlimited, an imprint of ABC-CLIO, LLC.

Čikaški stil citiranja

Okobi, Elsie A. Rogers Halliday. Library Services for Adults in the 21st Century. Santa Barbara, California: Libraries Unlimited, an imprint of ABC-CLIO, LLC, 2014.

MLA način citiranja

Okobi, Elsie A. Rogers Halliday. Library Services for Adults in the 21st Century. Santa Barbara, California: Libraries Unlimited, an imprint of ABC-CLIO, LLC, 2014.