APA

Museum of Modern Art (New York N., Frobenius L., Fox D. C. & Universität Frankfurt am Main. (1937). Prehistoric rock pictures in Europe and Africa: from material in the archives of the Research Institute for the Morphology of Civilization, Frankfort-on-Main. New York: Museum of Modern Art.

Chicago

Museum of Modern Art (New York NY), Frobenius Leo, Fox Douglas Claughton and Universität Frankfurt am Main. 1937. Prehistoric rock pictures in Europe and Africa: from material in the archives of the Research Institute for the Morphology of Civilization, Frankfort-on-Main. New York: Museum of Modern Art.

Harvard

Museum of Modern Art (New York N., Frobenius L., Fox D. C. and Universität Frankfurt am Main. (1937). Prehistoric rock pictures in Europe and Africa: from material in the archives of the Research Institute for the Morphology of Civilization, Frankfort-on-Main. New York: Museum of Modern Art.

MLA

Museum of Modern Art (New York NY), Frobenius Leo, Fox Douglas Claughton and Universität Frankfurt am Main. Prehistoric rock pictures in Europe and Africa: from material in the archives of the Research Institute for the Morphology of Civilization, Frankfort-on-Main. New York: Museum of Modern Art. 1937.