Cita APA (7a ed.)

Hill, A., & Ault, S. (1964). Overcoming distance (1. publ.). Heinemann.

Cita Chicago Style (17a ed.)

Hill, Alan, y Susan Ault. Overcoming Distance. 1. publ. London [u.a.]: Heinemann, 1964.

Cita MLA (9a ed.)

Hill, Alan, y Susan Ault. Overcoming Distance. 1. publ. Heinemann, 1964.