Kunkel, A. B., & Escobar, P. (2020). Digging for words: José Alberto Gutiérrez and the library he built. Schwartz & Wade Books, an imprint of Random House Children's Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKunkel, Angela Burke, और Paola Escobar. Digging for Words: José Alberto Gutiérrez and the Library He Built. New York: Schwartz & Wade Books, an imprint of Random House Children's Books, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKunkel, Angela Burke, और Paola Escobar. Digging for Words: José Alberto Gutiérrez and the Library He Built. Schwartz & Wade Books, an imprint of Random House Children's Books, 2020.
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