{"product_id":"tractors-isbn-9781098292942","title":"Tractors","description":"\u003cp\u003eTractors can get the job done. They help farmers every step of the way, from fertilizing fields to removing weeds to harvesting crops. This encyclopedia gives readers a look at tractors, from the first steam-powered plows to today's self-driving, high-tech tractors. Features include a helpful introduction to the topic, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards. Early Encyclopedias is an imprint of Abdo Reference, a division of ABDO.\u003c\/p\u003e","brand":"Early Encyclopedias, Abdo Reference","offers":[{"title":"Default Title","offer_id":46382639874277,"sku":"NP9781098292942","price":34.95,"currency_code":"USD","in_stock":false}],"url":"https:\/\/k12savings.com\/es\/products\/tractors-isbn-9781098292942","provider":"K12savings","version":"1.0","type":"link"}