Bridget Riley : Paintings and drawings 1951-71.

MLA

Robertson, Bryan. Bridget Riley : Paintings and Drawings 1951-71. London: Hayward Gallery, 1971.

APA

Robertson, B. (1971). Bridget Riley : Paintings and drawings 1951-71. London: Hayward Gallery.

Chicago

Robertson, Bryan Bridget Riley: Paintings and Drawings 1951-71. London: Hayward Gallery, 1971.