APA-referens (7:e uppl.)
Henri, R., & Ryerson, M. (1923). The art spirit: Notes, articles, fragments of letters and talks to students, bearing on the concept and technique of picture making, the study of art generally, and on appreciation. Lippincott.
Chicago-referens (17:e uppl.)
Henri, Robert, och Margery Ryerson. The Art Spirit: Notes, Articles, Fragments of Letters and Talks to Students, Bearing on the Concept and Technique of Picture Making, the Study of Art Generally, and on Appreciation. Philadelphia: Lippincott, 1923.
MLA-referens (9:e uppl.)
Henri, Robert, och Margery Ryerson. The Art Spirit: Notes, Articles, Fragments of Letters and Talks to Students, Bearing on the Concept and Technique of Picture Making, the Study of Art Generally, and on Appreciation. Lippincott, 1923.
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