A Collection of 10 Magnificent Sculptures by K. Appel (Sale Amsterdam, Sotheby's, 22 March 1987).

MLA

Wingen, Ed. A Collection of 10 Magnificent Sculptures by K. Appel (sale Amsterdam, Sotheby's, 22 March 1987). Amsterdam: Sotheby's, 1987.

APA

Wingen, E. (1987). A Collection of 10 Magnificent Sculptures by K. Appel (Sale Amsterdam, Sotheby's, 22 March 1987). Amsterdam: Sotheby's.

Chicago

Wingen, Ed A Collection of 10 Magnificent Sculptures by K. Appel (sale Amsterdam, Sotheby's, 22 March 1987). Amsterdam: Sotheby's, 1987.