APA (7e ed.) Bronvermelding

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.

Chicago (17e ed.) Bronvermelding

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.

MLA (8e ed.) Bronvermelding

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.