MLA

D'Amico, Tano, 1942-. Stroke of boys and dragon [Bologna, Convegno Internazionale contro la repressione]. Box 1, folder 40. 1977 September 23-25. https://collections.library.yale.edu/catalog/2067164.

APA, 6th edition

D'Amico, Tano, 1942-. (["Box 1, folder 40"])(1977 September 23-25)[Stroke of boys and dragon [Bologna, Convegno Internazionale contro la repressione]]. https://collections.library.yale.edu/catalog/2067164.