Best, R. E. (1993). Phase-locked loops (2nd ed.). McGraw-Hill.
Dyfyniad Arddull ChicagoBest, Roland E. Phase-locked Loops. 2nd ed. New York: McGraw-Hill, 1993.
Dyfyniad MLABest, Roland E. Phase-locked Loops. 2nd ed. McGraw-Hill, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.