Summers-Effler, E. (2004). Humble saints and righteous heroes: Sustaining intense involvement in altruistic social movements.
Čikaški stil citiranja (17. izdanje)Summers-Effler, Erika. Humble Saints and Righteous Heroes: Sustaining Intense Involvement in Altruistic Social Movements. 2004.
MLA način citiranja (8. izdanje)Summers-Effler, Erika. Humble Saints and Righteous Heroes: Sustaining Intense Involvement in Altruistic Social Movements. 2004.
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