Cita APA (7th ed.)

Barzun, J. (1977). The modern researcher (3rd.). harcourt Brace Jovanovich Inc.

Cita Chicago (17th ed.)

Barzun, J. The Modern Researcher. 3rd. New York: harcourt Brace Jovanovich Inc, 1977.

Cita MLA (9th ed.)

Barzun, J. The Modern Researcher. 3rd. harcourt Brace Jovanovich Inc, 1977.