na INLIS000000000042719 eng 0010-0617001611 Basic : a self-teaching guide Robert L Albrecht Albrecht, Robert L 2nd ed John Wiley & Sons, 1978 ix, 323 hlm.:ill, 26 cm. 001.642 4 Alb b 2 001.642 4 BASIC-PROGRAMMED INSTRUCTION 032984212 032884212