Oldenburg, C., & Friedman, M. (1975). Oldenburg: Six themes. Walker Art Center.
芝加哥风格引文Oldenburg, Claes, 与 Martin Friedman. Oldenburg: Six Themes. Minneapolis: Walker Art Center, 1975.
MLA引文Oldenburg, Claes, 与 Martin Friedman. Oldenburg: Six Themes. Walker Art Center, 1975.
警告：这些引文格式不一定是100％准确.