McGettrick, A. D., & Smith, P. D. (1983). Graded problems in computer science. Addison-Wesley.
Dyfyniad Arddull ChicagoMcGettrick, Andrew D., and Peter D. Smith. Graded Problems in Computer Science. London ; Reading, Mass.: Addison-Wesley, 1983.
Dyfyniad MLAMcGettrick, Andrew D., and Peter D. Smith. Graded Problems in Computer Science. Addison-Wesley, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.