Gray, J. (1975). Jazzrockblues Improv: [an introduction to improvising for all instruments] / Jerry Gray. Madison.
Lua i Stíl Chicago (17ú heag.)Gray, Jerry. Jazzrockblues Improv: [an Introduction to Improvising for All Instruments] / Jerry Gray. Seattle, Wash.: Madison, 1975.
Lua MLA (8ú heag.)Gray, Jerry. Jazzrockblues Improv: [an Introduction to Improvising for All Instruments] / Jerry Gray. Madison, 1975.
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