Foster, S. L. (2002). Dances that describe themselves: The improvised choreography of Richard Bull. Wesleyan University Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)Foster, Susan Leigh. Dances That Describe Themselves: The Improvised Choreography of Richard Bull. Middletown, Conn: Wesleyan University Press, 2002.
Παραπομπή σε μορφή MLA (8th εκδ.)Foster, Susan Leigh. Dances That Describe Themselves: The Improvised Choreography of Richard Bull. Wesleyan University Press, 2002.
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