Bishop, R. C., & Romano, D. [. (1998). Environmental resource valuation: Applications of the contingent valuation method in Italy. Kluwer Academic.
استشهاد بنمط شيكاغوBishop, Richard C.[ed.], و Donato [ed.] Romano. Environmental Resource Valuation: Applications of the Contingent Valuation Method in Italy. Boston: Kluwer Academic, 1998.
MLA استشهادBishop, Richard C.[ed.], و Donato [ed.] Romano. Environmental Resource Valuation: Applications of the Contingent Valuation Method in Italy. Kluwer Academic, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.