The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Photography Collection, The New York Public Library. "Studio portrait of an unidentified Peruvian woman breastfeeding" The New York Public Library Digital Collections. 1860 - 1880. https://digitalcollections.nypl.org/items/98a06110-8358-0134-af29-00505686a51c