Cite

Anonymous. "Marinetti." El Pueblo Galleg, no 1247, feb 1928. [5587-1]

MLA

Marinetti, F. T., 1876-1944. Anonymous. "Marinetti." El Pueblo Galleg, no 1247, feb 1928. [5587-1]. box 71, slide 7. 1928. https://collections.library.yale.edu/catalog/10657502.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 71, slide 7"])(1928)[Anonymous. "Marinetti." El Pueblo Galleg, no 1247, feb 1928. [5587-1]]. https://collections.library.yale.edu/catalog/10657502.