From 1950 until her death in 1989, McCoy was a frequent contributor to John Entenza's Los Angeles-based magazine Arts & Architecture, to Architectural Forum, Architectural Record, and Progressive Architecture, as well as to European magazines such as L'Architectura and Lotus.
McCoy wrote extensively for John Entenza's Los Angeles-based magazine Arts & Architecture from 1950 until her death in 1989. She also contributed to Architectural Forum, Architectural Record, Progressive Architecture, and European publications like L'Architectura and Lotus.