Citazione Stile APA (7a Edizione)

Walker, D. A., Anderson, C. A., & Wolf, R. M. (1976). The IEA six subject survey: An empirical study of education in twenty-one countries. Almqvist & Wiksell International ; J. Wiley.

Citazione stile Chigago Style (17a edizione)

Walker, David A., C. Arnold Anderson, e Richard M. Wolf. The IEA Six Subject Survey: An Empirical Study of Education in Twenty-one Countries. Stockholm : New York: Almqvist & Wiksell International ; J. Wiley, 1976.

Citatione MLA (8a ed.)

Walker, David A., et al. The IEA Six Subject Survey: An Empirical Study of Education in Twenty-one Countries. Almqvist & Wiksell International ; J. Wiley, 1976.