In the spirit of fluxus.

MLA

Armstrong, E, and S Anderson. In the Spirit of Fluxus. Minneapolis: Walker art center, 1993.

APA

Armstrong, E., & Anderson, S. (1993). In the spirit of fluxus. Minneapolis: Walker art center.

Chicago

Armstrong, E., and S Anderson. In the Spirit of Fluxus. Minneapolis: Walker art center, 1993.