APA (7 वां संस्करण) प्रशस्ति पत्र

-. (1963). A sense of wonder selections from great writers nature. Doubleday and co.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

-. A Sense of Wonder Selections from Great Writers Nature. New York: Doubleday and co, 1963.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

-. A Sense of Wonder Selections from Great Writers Nature. Doubleday and co, 1963.