[Posture-- I sit, stand, and walk upright.] [graphic]
MLA
[Posture-- I Sit, Stand, and Walk Upright.] [Graphic]. Department of Education, 0AD. https://collections.library.yale.edu/catalog/16047349.
APA, 6th edition
[Posture-- I sit, stand, and walk upright.] [graphic]. (0 C.E.). [Posters, Lithographs]. Department of Education. https://collections.library.yale.edu/catalog/16047349.