TY  - BOOK
ED  - Soil and Plant Analysis Council
TI  - Soil analysis: handbook of reference methods 
SN  - 0-8493-0205-6 (papel alcalino)
AV  - S593 H35 2000
U1  - 631.4/1/0287 21
PY  - 2000///
CY  - Boca Raton, Florida
PB  - CRC Press
KW  - Suelos
KW  - Analisis
KW  - Manuales de laboratorio
N1  - Ed. rev. de: Handbook of reference methods for soil analysis. 1992
ER  -