Cita APA

Barzun, J., & Graff, H. F. (1977). The Modern Researcher (3d ed.). Harcourt Brace Jovanovich.

Citación estilo Chicago

Barzun, Jacques, and Henry F. Graff. The Modern Researcher. 3d ed. New York: Harcourt Brace Jovanovich, 1977.

Cita MLA

Barzun, Jacques, and Henry F. Graff. The Modern Researcher. 3d ed. Harcourt Brace Jovanovich, 1977.