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Dyfyniad Arddull ChicagoWeisbrod,Burton A. To Profit or Not to Profit: Commercial Transformation of the Non Profit Sector. New York: Cambridge, 1998.
Dyfyniad MLAWeisbrod,Burton A. To Profit or Not to Profit: Commercial Transformation of the Non Profit Sector. Cambridge, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.