Cita APA (7th ed.)

Smiles, S. (1908). Self-help: With illustrations of conduct and perseverance. John Murray, Abermale Street.

Cita Chicago (17th ed.)

Smiles, Samuel. Self-help: With Illustrations of Conduct and Perseverance. Londres: John Murray, Abermale Street, 1908.

Cita MLA (9th ed.)

Smiles, Samuel. Self-help: With Illustrations of Conduct and Perseverance. John Murray, Abermale Street, 1908.