Title: The Healthy Brain Book of Word Puzzles, Author: Fred Piscop
Title: Mensa 10-Minute Crossword Puzzles, Author: Fred Piscop
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Title: The Washington Post Sunday Crossword Omnibus, Volume 3, Author: William R. Mackaye
Title: 10-Minute Crosswords: 100 Quick Puzzles to Solve, Author: Fred Piscop