Ziegler, C. A. (1983). Programming system methodologies. Prentice-Hall of India.
Dyfyniad Arddull ChicagoZiegler, Carol A. Programming System Methodologies. New Jersey: Prentice-Hall of India, 1983.
Dyfyniad MLAZiegler, Carol A. Programming System Methodologies. Prentice-Hall of India, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.