Constantine, M., & Jacobson , E. (1961). Sign language for buildings and landscape.
Chicago Edition CitationConstantine, Mildred, and Egbert Jacobson. Sign Language for Buildings and Landscape. 1961.
MLA Edition CitationConstantine, Mildred, and Egbert Jacobson. Sign Language for Buildings and Landscape. 1961.
Warning: These citations may not always be 100% accurate.