Cita APA (7a ed.)

Colyer, P., Watson, W., & Parkins, D. (1987). In Deutschland (2. ed.). Nelson.

Cita Chicago Style (17a ed.)

Colyer, Penrose, Wendi Watson, y David Parkins. In Deutschland. 2. ed. Walton-on Thames: Nelson, 1987.

Cita MLA (9a ed.)

Colyer, Penrose, et al. In Deutschland. 2. ed. Nelson, 1987.