HELD,Richard. (1971). Image, object, and illusion. W.H. Freeman and company.
Chicago Style (17th ed.) CitationHELD,Richard. Image, Object, and Illusion. W.H. Freeman and company, 1971.
MLA (8th ed.) CitationHELD,Richard. Image, Object, and Illusion. W.H. Freeman and company, 1971.
Warning: These citations may not always be 100% accurate.