Style de citation APA

Valdés, A., Scobie, G. M., & Dillon, J. L. (1979). Economics and the design of small-farmer technology. Iowa State University Press.

Style de citation Chicago

Valdés, Alberto, Grant M. Scobie, et John L. Dillon. Economics and the Design of Small-farmer Technology. Ames: Iowa State University Press, 1979.

Style de citation MLA

Valdés, Alberto, et al. Economics and the Design of Small-farmer Technology. Iowa State University Press, 1979.