Lamplugh, M. W. a. J. W. i. a. w. D. Working alone surviving and thriving. Pitman.
Dyfyniad Arddull ChicagoLamplugh, Mike Woods and Jackie Whitehead in association with Diana. Working Alone Surviving and Thriving. Pitman.
Dyfyniad MLALamplugh, Mike Woods and Jackie Whitehead in association with Diana. Working Alone Surviving and Thriving. Pitman.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.