Cita APA (7a ed.)

Willoughby, S., & Atkinson, B. (1994). Expansion, trade & industry (1. publ.). Heinemann.

Cita Chicago Style (17a ed.)

Willoughby, Susan, y Barry Atkinson. Expansion, Trade & Industry. 1. publ. Oxford [u.a.]: Heinemann, 1994.

Cita MLA (9a ed.)

Willoughby, Susan, y Barry Atkinson. Expansion, Trade & Industry. 1. publ. Heinemann, 1994.