TY - BOOK ID - 14460477 TI - Kennis van den grond PY - 1930 PB - Groningen Den Haag J.B. Wolters DB - UniCat KW - AGR Agriculture KW - agriculture KW - edaphology KW - pedology KW - soil science UR - https://www.unicat.be/uniCat?func=search&query=sysid:14460477 AB - ER -