Romunde, Dick van, 1916- About formative forces in the plant world / text by Dick van Romunde ; original drawings by Elly van Hardeveld. - First American edition. - 163 pages : colour illustrations ; 23 cm ISBN: 0967505615 9780967505619 LCCN: 2003102492 Subjects--Topical Terms: Waldorf method of education.Plant anatomy. LC Class. No.: QK641 / .R653 2001 Dewey Class. No.: 371.391