Natural variation in repetition of ornamental forms. Primary school children drawing on the blackboard, Philadelphia
MLA
Natural Variation in Repetition of Ornamental Forms. Primary School Children Drawing on the Blackboard, Philadelphia. 0AD. https://collections.library.yale.edu/catalog/2019755.
APA, 6th edition
Natural variation in repetition of ornamental forms. Primary school children drawing on the blackboard, Philadelphia. (0 C.E.). [Halftones, Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2019755.
