Cita APA (7th ed.)

Power, R. L. (1917). Boston's special libraries. Prentice-Hall.

Cita Chicago (17th ed.)

Power, Ralph Lester. Boston's Special Libraries. New York City: Prentice-Hall, 1917.

Cita MLA (9th ed.)

Power, Ralph Lester. Boston's Special Libraries. Prentice-Hall, 1917.