49. Valsugana (north of Rovereto). Soldiers [including FTM?]. Inscribed on verso in three different hands: "Giulio Marchi Firenze 19/2/17," "Sugana," and "a Marinetti."
MLA
Marinetti, F. T., 1876-1944. 49. Valsugana (north of Rovereto). Soldiers [including FTM?]. Inscribed on verso in three different hands: "Giulio Marchi Firenze 19/2/17," "Sugana," and "a Marinetti.". Box 49, folder 1939. 1917 Feb 19. https://collections.library.yale.edu/catalog/2008609.
APA, 6th edition
Marinetti, F. T., 1876-1944. (["Box 49, folder 1939"])(1917 Feb 19)[49. Valsugana (north of Rovereto). Soldiers [including FTM?]. Inscribed on verso in three different hands: "Giulio Marchi Firenze 19/2/17," "Sugana," and "a Marinetti."]. https://collections.library.yale.edu/catalog/2008609.