Bray, J. (1982). Production, purpose and structure. London: Frances Pinter.
Dyfyniad Arddull ChicagoBray, Jeremy. Production, Purpose and Structure. London: Frances Pinter, 1982.
Dyfyniad MLABray, Jeremy. Production, Purpose and Structure. London: Frances Pinter, 1982.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.