Leestma, S., & Nyhoff, L. R. (1990). Pascal: Programming and problem solving (3rd ed.). Macmillan ; Collier Macmillan.
Chicago-čujuhus (17. p.)Leestma, Sanford, juo Larry R. Nyhoff. Pascal: Programming and Problem Solving. 3rd ed. New York : London: Macmillan ; Collier Macmillan, 1990.
MLA-čujuhus (9. p.)Leestma, Sanford, juo Larry R. Nyhoff. Pascal: Programming and Problem Solving. 3rd ed. Macmillan ; Collier Macmillan, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.