Hooper, W. (1968). Arrangements: For Men's Voices Nº 4 Spirituals and Folk-Hymns. Key Music Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHooper, Wayne. Arrangements: For Men's Voices Nº 4 Spirituals and Folk-Hymns. Glendale, California: Key Music Company, 1968.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHooper, Wayne. Arrangements: For Men's Voices Nº 4 Spirituals and Folk-Hymns. Key Music Company, 1968.
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