APA (7th ed.) Citation

Singer, J., & Pfahl, C. (1977). Charles Pfahl, artist at work. Watson-Guptill Publications.

Chicago Style (17th ed.) Citation

Singer, Joe, and Charles Pfahl. Charles Pfahl, Artist at Work. New York: Watson-Guptill Publications, 1977.

MLA (9th ed.) Citation

Singer, Joe, and Charles Pfahl. Charles Pfahl, Artist at Work. Watson-Guptill Publications, 1977.

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