Pretty, J. N., & Chambers, R. (1993). Towards a learning paradigm: New professionalism and institutions for agriculture. Institute of Development Studies.
Cita Chicago (17th ed.)Pretty, Jules N., i Robert Chambers. Towards a Learning Paradigm: New Professionalism and Institutions for Agriculture. England: Institute of Development Studies, 1993.
Cita MLA (9th ed.)Pretty, Jules N., i Robert Chambers. Towards a Learning Paradigm: New Professionalism and Institutions for Agriculture. Institute of Development Studies, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.