Dwyer, T. A., & Critchfield, M. (1985). Instructor's manual for Basic: A guide to structured programming. Houghton Mifflin.
Cita Chicago (17th ed.)Dwyer, Thomas A., i Margot Critchfield. Instructor's Manual for Basic: A Guide to Structured Programming. Boston: Houghton Mifflin, 1985.
Cita MLA (9th ed.)Dwyer, Thomas A., i Margot Critchfield. Instructor's Manual for Basic: A Guide to Structured Programming. Houghton Mifflin, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.