APA (7th ed.) Citation

Thirtle, C. G., & Ruttan, V. W. (1987). The role of demand and supply in the generation and diffusion of technical change. Harwood Academic.

Chicago Style (17th ed.) Citation

Thirtle, Colin G., and Vernon W. Ruttan. The Role of Demand and Supply in the Generation and Diffusion of Technical Change. Chur: Harwood Academic, 1987.

MLA (9th ed.) Citation

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