Vos, E. Critical perspectives on experimental, visual, and concrete poetry: An introduction to this volume (with an appendix on Carlfriedrich Claus) / Eric Vos. Experimental - visual - concrete : Avant-Garde Poetry since the 1960s.(1996).
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Vos, Eric. "Critical Perspectives on Experimental, Visual, and Concrete Poetry: An Introduction to This Volume (with an Appendix on Carlfriedrich Claus) / Eric Vos." Experimental - Visual - Concrete : Avant-Garde Poetry Since the 1960s.(1996) .
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Vos, Eric. "Critical Perspectives on Experimental, Visual, and Concrete Poetry: An Introduction to This Volume (with an Appendix on Carlfriedrich Claus) / Eric Vos." Experimental - Visual - Concrete : Avant-Garde Poetry Since the 1960s.(1996), .