E. H. D. Polanco

Wheat in the world food economy: Increasing role in developing countries

D. Byerlee, E. H. D. Polanco, 1983 .

Farmers' Stepwise Adoption of Technological Packages: Evidence from the Mexican Altiplano

Derek Byerlee, Edith Hesse de Polanco, D. Byerlee, 1986 .