Johnson, T. (1979). Verses for percussion: For two xylophone, glockenspiel, snare drum, and tom-tom. Associated Music Publishers.
Lua i Stíl Chicago (17ú heag.)Johnson, Tom. Verses for Percussion: For Two Xylophone, Glockenspiel, Snare Drum, and Tom-tom. New York: Associated Music Publishers, 1979.
Lua MLA (9ú heag.)Johnson, Tom. Verses for Percussion: For Two Xylophone, Glockenspiel, Snare Drum, and Tom-tom. Associated Music Publishers, 1979.
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