A.R. Penck.

MLA

Calvocoressi, Richard. A.r. Penck. London: Waddington Galleries London, 1982.

APA

Calvocoressi, R. (1982). A.R. Penck. London: Waddington Galleries London.

Chicago

Calvocoressi, Richard A.R. Penck. London: Waddington Galleries London, 1982.