Longley-Cook, L. H. (1970). New math puzzles book. Van Nostrand Reinhold.
Chicago Edition CitationLongley-Cook, L. H. New Math Puzzles Book. New York: Van Nostrand Reinhold, 1970.
MLA引文Longley-Cook, L. H. New Math Puzzles Book. Van Nostrand Reinhold, 1970.
警告:這些引文格式不一定是100%准確.