IFOAM 2000 - The World Grows Organic: 13th International IFOAM Scientific Conference 28-31 August: Proceedings 13th International IFOAM Scientific Conference

von: Thomas Alfäldi · William Lockeretz · Urs Niggli

Taschenbuch

ISBN: 978-3-7281-2754-9

ISBN-10: 3-7281-2754-X

vdf Hochschulvlg · 2000