Ernst Barlach - Käthe Kollwitz.

MLA

Werner, Alfred. Ernst Barlach - Käthe Kollwitz. New York: Marlborough-Gerson Gallery Inc, 1968.

APA

Werner, A. (1968). Ernst Barlach - Käthe Kollwitz. New York: Marlborough-Gerson Gallery Inc.

Chicago

Werner, Alfred Ernst Barlach - Käthe Kollwitz. New York: Marlborough-Gerson Gallery Inc, 1968.