Cita APA (7th ed.)

Lyon, J. E. (1961). Pitfalls of Spanish vocabulary. Harrap.

Cita Chicago (17th ed.)

Lyon, J E. Pitfalls of Spanish Vocabulary. Lond.: Harrap, 1961.

Cita MLA (8th ed.)

Lyon, J E. Pitfalls of Spanish Vocabulary. Harrap, 1961.