CitrinJ., WongC., & DuffB. (2001). The meaning of American national identity: Patterns of ethnic conflict and consensus. In AshmoreR. D. & JussimL. (Series Eds.) & AshmoreR. D., JussimL., & WilderD. (Vol. Eds.), Rutgers series on self and social identity: Vol. 3. Social identity, intergroup conflict, and conflict reduction (pp. 71–100). New York, NY: Oxford University Press.
2.
LindemanE. C. (1926). The meaning of adult education. New York, NY: New Republic.