Cita APA (7a ed.)

Barry, Davies, T., & Pantling, N. (1987). World patterns and resources (1. printed.). Schofield & Sims.

Cita Chicago Style (17a ed.)

Barry, Tim Davies, y Norman Pantling. World Patterns and Resources. 1. printed. Huddersfield: Schofield & Sims, 1987.

Cita MLA (9a ed.)

Barry, et al. World Patterns and Resources. 1. printed. Schofield & Sims, 1987.