00802cam a22002651 4500 30731 BD-RjUL 20211209051617.0 140412s1961 caua b 000 0 eng (BD-RjUL)30818 (OCoLC)177740 DLC OCanM NBrockU OCoLC ODaWU OClW-H NcRS DLC BD-RjUL eng eng 371.3944 CRE 1961 Cram, David. 93411 Explaining "teaching machines" and programming / by David Cram. San Francisco, Calif. : Fearon, c1961. vii, 86 p. : illus. ; 20 cm. Bibliography: p. 82. Teaching machines. 29045 Programmed instruction. 93412 ddc BK 30731 30731 0 0 ddc 0 1 NFIC RUCL RUCL Reading 1965-02-11 Zitlinger 10.00 0 371.3944 CRE 1961 2014-04-12 00:00:00 C-1 2014-04-12 BK