Παραπομπή APA

Grambs, J. D. (1968). Intergroup education: Methods and materials. Prentice Hall.

Παραπομπή Chicago Style

Grambs, Jean Dreoden. Intergroup Education: Methods and Materials. New Jersy: Prentice Hall, 1968.

Παραπομπή MLA

Grambs, Jean Dreoden. Intergroup Education: Methods and Materials. Prentice Hall, 1968.