Hennefeld, J. O. (1981). Using BASIC: An introduction to computer programming (2nd ed.). Prindle, Weber & Schmidt.
Chicago-viite (17. p.)Hennefeld, Julien O. Using BASIC: An Introduction to Computer Programming. 2nd ed. Boston: Prindle, Weber & Schmidt, 1981.
MLA-viite (9. p.)Hennefeld, Julien O. Using BASIC: An Introduction to Computer Programming. 2nd ed. Prindle, Weber & Schmidt, 1981.
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