Cita APA (7th ed.)

Hirsh, S. (2015). Information services today: An introduction. Rowman & Littlefield.

Cita Chicago (17th ed.)

Hirsh, Sandra. Information Services Today: An Introduction. Lanham: Rowman & Littlefield, 2015.

Cita MLA (9th ed.)

Hirsh, Sandra. Information Services Today: An Introduction. Rowman & Littlefield, 2015.