Van Praag, B. M. (1968). Individual welfare functions and consumer behavior. North Holland.
Dyfyniad Arddull ChicagoVan Praag, Bernard M.S. Individual Welfare Functions and Consumer Behavior. Amsterdam: North Holland, 1968.
Dyfyniad MLAVan Praag, Bernard M.S. Individual Welfare Functions and Consumer Behavior. North Holland, 1968.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.