Cita APA (7th ed.)

Roberts, S. C. (1954). Samuel Johnson. Longmans, Green and Co.

Cita Chicago (17th ed.)

Roberts, S. C. Samuel Johnson. Londres: Longmans, Green and Co, 1954.

Cita MLA (9th ed.)

Roberts, S. C. Samuel Johnson. Longmans, Green and Co, 1954.