Nas,Tevfik F. (1996). Cost-benefit analysis: Theory and application. Sage Publication.
Dyfyniad Arddull ChicagoNas,Tevfik F. Cost-benefit Analysis: Theory and Application. California: Sage Publication, 1996.
Dyfyniad MLANas,Tevfik F. Cost-benefit Analysis: Theory and Application. Sage Publication, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.