TY  - BOOK
AU  - Sigmond, Alexius A.J. de
AU  - Yolland, Arthur B., tran.
AU  - Jacks, G.V., ed.
TI  - The principles of soil science
U1  - 631.4015 21st ed.
PY  - 1938///
CY  - London
PB  - Thomas Murby
KW  - Soil science
KW  - Soil chemistry
KW  - Soil biology
N1  - Index: pp 355-57; foreword by John Russell
ER  -