Retrieved from https://studentshare.org/design-technology/1600684-discuss-combine-harvester-and-its-historic-and-current-impact-on-the-economy-the-environment-relationships-education-and-morals-give-examples-to-support-your-discussion
https://studentshare.org/design-technology/1600684-discuss-combine-harvester-and-its-historic-and-current-impact-on-the-economy-the-environment-relationships-education-and-morals-give-examples-to-support-your-discussion.