Medina, N., & Putra, D. (2018). Who was Leif Erikson? Penguin Workshop, an imprint of Penguin Random House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMedina, Nico, और Dede Putra. Who Was Leif Erikson? New York, New York: Penguin Workshop, an imprint of Penguin Random House, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMedina, Nico, और Dede Putra. Who Was Leif Erikson? Penguin Workshop, an imprint of Penguin Random House, 2018.
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