Παραπομπή σε μορφή APA (7η εκδ.)
Sumka, S., Porter, M. C., Piacitelli, J., & Williams, T. (2015). Working side by side: Creating alternative breaks as catalysts for global learning, student leadership, and social change (First edition.). Stylus.
Παραπομπή σε μορφή Chicago (17η εκδ.)
Sumka, Shoshanna, Melody Christine Porter, Jill Piacitelli, και Tanya Williams. Working Side by Side: Creating Alternative Breaks as Catalysts for Global Learning, Student Leadership, and Social Change. First edition. Sterling, Virginia: Stylus, 2015.
Παραπομπή σε μορφή MLA (9th εκδ.)
Sumka, Shoshanna, et al. Working Side by Side: Creating Alternative Breaks as Catalysts for Global Learning, Student Leadership, and Social Change. First edition. Stylus, 2015.
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