Empson, W. (1947). Seven types of ambiguity ([2d ed., rev. and re-set.). New Directions.
Chicago Style (17th ed.) CitationEmpson, William. Seven Types of Ambiguity. [2d ed., rev. and re-set. New York]: New Directions, 1947.
MLA (9th ed.) CitationEmpson, William. Seven Types of Ambiguity. [2d ed., rev. and re-set. New Directions, 1947.
Warning: These citations may not always be 100% accurate.