Wright, P. L., & Taylor, D. S. (1984). Improving leadership performance. Prentice-Hall.
Dyfyniad Arddull ChicagoWright, Peter L., and David S. Taylor. Improving Leadership Performance. Englewood Cliffs, N.J: Prentice-Hall, 1984.
Dyfyniad MLAWright, Peter L., and David S. Taylor. Improving Leadership Performance. Prentice-Hall, 1984.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.