Cite

Map of Gaylord Farm, Wallingford, Conn. / surveyed by H.E. Phelps.

MLA

Map of Gaylord Farm, Wallingford, Conn. / Surveyed by H.E. Phelps. s.n.], 1920. https://collections.library.yale.edu/catalog/15827728.

APA, 6th edition

Map of Gaylord Farm, Wallingford, Conn. / surveyed by H.E. Phelps. (1920). [Maps]. s.n.], https://collections.library.yale.edu/catalog/15827728.