Peckham, Herbert D. creator text New York McGraw-Hill Book Co. 1979 monographic xii, 267 p. : ill. ; 23 cm. Includes index. BASIC (Computer program language) Atari 400 (Computer) Atari 1200XL (Computer) Discovery exercise Graphics modes Computer arithmetic Looping and functions Retrieving information String variables FC 005.133 PEC 0070491577 (pbk)