एपीए उद्धरण

Thirtle,Colin G, & Rutten,Vernon W. (1987). The role of demand and supply in the generation and diffusion of technical change. Harwood Academic Publishers.

शिकागो स्टाइल उद्धरण

Thirtle,Colin G, और Rutten,Vernon W. The Role of Demand and Supply in the Generation and Diffusion of Technical Change. London: Harwood Academic Publishers, 1987.

एमएलए उद्धरण

Thirtle,Colin G, और Rutten,Vernon W. The Role of Demand and Supply in the Generation and Diffusion of Technical Change. Harwood Academic Publishers, 1987.