SoilMinerals.com

year of pub­li­ca­ti­onISBNauthor(s)title
2010978-0-9844876-0-8Michael AsteraThe Ideal Soil: A Handbook for the New Agriculture
  ''978-0-9844876-1-5   ''The Ideal Soil: A Handbook for the New Agriculture
2014978-0-9844876-2-2   ''The Ideal Soil 2014: A Handbook for the New Agriculture v2.0