Jacobson, E. (1929). Progressive relaxation: A physiological and clinical investigation of muscular states and their significance in psychology and medical practice. The University of Chicago Press.
Lua i Stíl Chicago (17ú heag.)Jacobson, Edmund. Progressive Relaxation: A Physiological and Clinical Investigation of Muscular States and Their Significance in Psychology and Medical Practice. Chicago, Ill.: The University of Chicago Press, 1929.
Lua MLA (8ú heag.)Jacobson, Edmund. Progressive Relaxation: A Physiological and Clinical Investigation of Muscular States and Their Significance in Psychology and Medical Practice. The University of Chicago Press, 1929.
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