APA (7th ed.) Citation

Prentice, A. E. (2011). Public libraries in the 21st century. Libraries Unlimited.

Chicago Style (17th ed.) Citation

Prentice, Ann E. Public Libraries in the 21st Century. Santa Barbara, Calif. [u.a.]: Libraries Unlimited, 2011.

MLA (9th ed.) Citation

Prentice, Ann E. Public Libraries in the 21st Century. Libraries Unlimited, 2011.