Cite

[Sleep-- I will sleep alone with windows open, and my head uncovered by the blanket.] [graphic]

MLA

[Sleep-- I Will Sleep Alone with Windows Open, and My Head Uncovered by the Blanket.] [Graphic]. Department of Education, 0AD. https://collections.library.yale.edu/catalog/16047376.

APA, 6th edition

[Sleep-- I will sleep alone with windows open, and my head uncovered by the blanket.] [graphic]. (0 C.E.). [Posters, Lithographs]. Department of Education. https://collections.library.yale.edu/catalog/16047376.