00668nam a2200217 a 4500 61374 BD-RjUL 20211209080943.0 170117s1921 enk||||| |||| 00| 0aeng d (BD-RjUL)61498 BD-RjUL eng BD-RjUL BD-RjUL eng 23 370.15 THM 1921 Thorndike Edward L 183004 Mental work and fatigue and individual differences and their causes / Edward L Thorndike New York : Teachers' College, Columbia University, 1921 408 p. ; 24 cm. Include index Educational psychology 178267 ddc BK 61374 61374 0 0 ddc 0 1 NFIC RUCL RUCL Reading 1956-05-28 Prof. zaidi 20.19 0 370.15 THM 1921 2017-01-17 00:00:00 C-1 2017-01-17 BK