Boillot, M., Horn, L. W., & Gleason, G. M. (1979). Essentials of flowcharting (2nd ed.). W. C. Brown Co..
Dyfyniad Arddull ChicagoBoillot, Michel, L. Wayne Horn, and Gary M. Gleason. Essentials of Flowcharting. 2nd ed. Dubuque, Iowa: W. C. Brown Co., 1979.
Dyfyniad MLABoillot, Michel, et al. Essentials of Flowcharting. 2nd ed. W. C. Brown Co., 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.