Walker, N. (2019). Why do we fight?: Conflict, war, and peace. Owlkids.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWalker, Niki. Why Do We Fight?: Conflict, War, and Peace. Toronto, ON ; Berkeley, CA: Owlkids, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWalker, Niki. Why Do We Fight?: Conflict, War, and Peace. Owlkids, 2019.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.