(1921). Bensinger's special edition of Complete phrase code (nearly 1000 million combinations) (with a difference of at least 2 letters in each half code-word) 1921 reprint of 1st ed ..
Citazione stile Chigago Style (17a edizione)Bensinger's Special Edition of Complete Phrase Code (nearly 1000 Million Combinations) (with a Difference of at Least 2 Letters in Each Half Code-word) 1921 Reprint of 1st Ed .. 1921.
Citatione MLA (9a ed.)Bensinger's Special Edition of Complete Phrase Code (nearly 1000 Million Combinations) (with a Difference of at Least 2 Letters in Each Half Code-word) 1921 Reprint of 1st Ed .. 1921.
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