Ulman, J. N., & Gould, J. R. (1959). Technical reporting. Holt, Rinehart and Winston.
Dyfyniad Arddull ChicagoUlman, Joseph N., and Jay Reed Gould. Technical Reporting. New York: Holt, Rinehart and Winston, 1959.
Dyfyniad MLAUlman, Joseph N., and Jay Reed Gould. Technical Reporting. Holt, Rinehart and Winston, 1959.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.