A multidisciplinary education guide for grades 2-12 (with sections on "How to Adapt" for Preschool - 1st grade, home schools, youth groups, and nature centers)
Sanford R. Wilbur oral history interview with Mark Madison. Note that this appears to be a write-up of the interview by Dr. Madison, as it is not structured like a traditional interview, and Mr. Wilbur is referred to in the third person.