Art at Auction : : The Year at Sotheby's & Parke-Bernet 1967 - '68 / / Edited by Philip Wilson ; authors Richard Day, Harmer Johnson, J.F. Hayward, ...(et al.).

MLA

Wilson, Philip, et al. Art At Auction : The Year At Sotheby's & Parke-bernet 1967 - '68. London: Macdonald & Co., 1968.

APA

Wilson, P., Day, R., Johnson, H., & Hayward, J. (1968). Art at Auction : The Year at Sotheby's & Parke-Bernet 1967 - '68. London: Macdonald & Co.

Chicago

Wilson, Philip, Richard Day, Harmer Johnson, and J.F Hayward. Art At Auction: The Year At Sotheby's & Parke-Bernet 1967 - '68. London: Macdonald & Co., 1968.