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