Cita APA (7th ed.)

Sears, D. A. (1973). Harbrace guide to the Library and the research paper (3.). Hartcourt brace jovanovich.

Cita Chicago (17th ed.)

Sears, Donald A. Harbrace Guide to the Library and the Research Paper. 3. New York, Estados Unidos: Hartcourt brace jovanovich, 1973.

Cita MLA (9th ed.)

Sears, Donald A. Harbrace Guide to the Library and the Research Paper. 3. Hartcourt brace jovanovich, 1973.