APA (7th ed.) Citation

Castle, T. (1981). Keith Sonnier's Pictograms. Artforum.

Chicago Style (17th ed.) Citation

Castle, Ted. "Keith Sonnier's Pictograms." Artforum 1981.

MLA (8th ed.) Citation

Castle, Ted. "Keith Sonnier's Pictograms." Artforum, 1981.

Warning: These citations may not always be 100% accurate.