Echterhoff, G. (1999). Global Conceptualism: Points of Origin, 1950s-1980s. Springerin.
Chicago-Zitierstil (17. Ausg.)Echterhoff, Gerald. "Global Conceptualism: Points of Origin, 1950s-1980s." Springerin 1999.
MLA-Zitierstil (8. Ausg.)Echterhoff, Gerald. "Global Conceptualism: Points of Origin, 1950s-1980s." Springerin, 1999.
警告：這些引文格式不一定是100％准確.