Books listed by ISBN > Sterling > National Puzzlers' League

National Puzzlers' League

N.P.

titleISBN-13
(ISBN-10)		year of publica-
tion		other author(s)
Brain Aerobics Cryptograms978-1-4549-0966-8
(1-4549-0966-8)		2013National Puzzlers' League
Sit & Solve Cryptograms #2978-1-4027-1309-5
(1-4027-1309-6)		2004   "

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