APA aipamena

Barr, R. D., Barth, J. L., & Shermis, S. S. (1977). Defining the social studies. National Council for the Social Studies.

Chicago Style aipamena

Barr, Robert D., James L. Barth, and S. Samuel Shermis. Defining the Social Studies. Arlington, Virginia: National Council for the Social Studies, 1977.

MLA aipamena

Barr, Robert D., et al. Defining the Social Studies. National Council for the Social Studies, 1977.