The theme of this paper is the debate on principles and strategies for designing sustainable agricultural systems. The paper builds on a broad approach to principles. moving to the more specific approach to strategies and finalizing with a micro-scale perspective on the practice of drawings and the consequences of each possible option. The objective is first of all to put to the debat... https://www.chiggate.com/jerome-brown-philadelphia-eagles-mitchell-ness-1990-legacy-jersey-discount/