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Detailed Information for Seller's item number: 102683
Wff'N Proof: The Game of Modern Logic
Author: Allen, Layman E.
Publisher: [New Haven, Conn., Wff'n Proof] 1964, 1962

viii, 224 p.; 21 cm. A series of 21 games of diverse complexity provide challenging and interesting exercises in logic. The games are organized so that players will learn in a systematic step-by-step fashion the skills required to play the final game. Learning proceeds in the programmed manner advocated by B. F. Skinner. Reproduced from typescript. Stock#102683. Good+ / soft cover.

Price: US$10.00. Quantity available: 1.
 Appr.: | AUD 10.64 CAD 10.75 EUR 7.38 GBP 5.85 JPY 1000 MXN 125 ZAR 105 

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Seller and Location:
   The Owl at the Bridge
25 Berwick Lane
Cranston, Rhode Island
02905-3708 United States
Phone: 401-467-7362
Website: http://www.owlatthebridge.com/
Email: Owlbridge1@verizon.net

Seller's item number:
102683

Seller's Terms of Sale:
Shipping: US media mail $4.75 (1-30 days); priority $11 (4-10 days); tracking number included in receipt email. International orders charged by weight. Pay by credit card, check, Western Union, International Money Order or bank transfer. (Your charge appears as "A Book CoOp", former name of TomFolio.) On request, we provide additional services or a different carrier (UPS, FedEx, DHL) although, astonishingly, the USPS remains most economical. Return any item within ten days of receipt (refund to exclude shipping). We invoice established institutions. This is a secure site for credit transactions; use Visa, Mastercard, or American Express (this bookseller does not use paypal).

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