Cita APA (7th ed.)
Wallbank, W. T., Balkey, N. M., & Taylor, A. M. (1977). Western civilization: People and progress. Scott.
Cita Chicago (17th ed.)
Wallbank, Walter T., Nels M. Balkey, i Alastair M. Taylor. Western Civilization: People and Progress. Dalla: Scott, 1977.
Cita MLA (9th ed.)
Wallbank, Walter T., et al. Western Civilization: People and Progress. Scott, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.