Ernst Barlach - Käthe Kollwitz.

MLA

Ernst Barlach - Käthe Kollwitz. London: Marlborough Fine Art Ltd., 1967.

APA

(1967). Ernst Barlach - Käthe Kollwitz. London: Marlborough Fine Art Ltd.

Chicago

Ernst Barlach - Käthe Kollwitz. London: Marlborough Fine Art Ltd., 1967.