Bealle, P. J. (1990). Obstacles and advocates: Factors influencing the introduction of modern art from Germany to New York City, 1912-33: major promoters and exhibitions.
Чикаго стиль цитування (17-те видання)Bealle, Penny Joy. Obstacles and Advocates: Factors Influencing the Introduction of Modern Art from Germany to New York City, 1912-33: Major Promoters and Exhibitions. Ithaca, N.Y, 1990.
Стиль цитування MLA (8-ме видання)Bealle, Penny Joy. Obstacles and Advocates: Factors Influencing the Introduction of Modern Art from Germany to New York City, 1912-33: Major Promoters and Exhibitions. 1990.
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