Clark, J. S., Hicks, M. D., & Perry, W. S. (1898). Teacher's manual: For The Prang elementary course in art instruction books 5 and 6 fifth year. The Prang Company.
Παραπομπή σε μορφή Chicago (17η εκδ.)Clark, John Spencer, Mary Dana Hicks, και Walter Scott Perry. Teacher's Manual: For The Prang Elementary Course in Art Instruction Books 5 and 6 Fifth Year. New York : Chicago [etc.]: The Prang Company, 1898.
Παραπομπή σε μορφή MLA (8th εκδ.)Clark, John Spencer, et al. Teacher's Manual: For The Prang Elementary Course in Art Instruction Books 5 and 6 Fifth Year. The Prang Company, 1898.
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