Cita APA (7a ed.)

Naish, M., & Burton, S. (1994). 16 - 19 core geography (1. ed., 2. impr.). Longman.

Cita Chicago Style (17a ed.)

Naish, Michael, y Steve Burton. 16 - 19 Core Geography. 1. ed., 2. impr. Harlow: Longman, 1994.

Cita MLA (9a ed.)

Naish, Michael, y Steve Burton. 16 - 19 Core Geography. 1. ed., 2. impr. Longman, 1994.