TY  - BOOK
AU  - "Ewald Schnug, Luit J. De Kok"
TI  - Phosphorus in Agriculture: 100 % Zero
SN  - 978-94-017-7612-7
PB  - Springer
KW  - Life Sciences; Plant Ecology
UR  - http://link.springer.com/openurl?genre=book&isbn=978-94-017-7612-7
ER  -