Hooper, W. (1968). Arrangements: For Men's Voices Nº 4 Spirituals and Folk-Hymns. Key Music Company.
Chicago-čujuhus (17. p.)Hooper, Wayne. Arrangements: For Men's Voices Nº 4 Spirituals and Folk-Hymns. Glendale, California: Key Music Company, 1968.
MLA-čujuhus (9. p.)Hooper, Wayne. Arrangements: For Men's Voices Nº 4 Spirituals and Folk-Hymns. Key Music Company, 1968.
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