TY  - BOOK
AU  - " Donahue, Roy L."
TI  - Soils an introduction to soils and plant growth
U1  - 631.4:581.143 L1 
PB  - "New york : Prentice-hall, 1971"
KW  - " Shickluna, John C."
KW  - Soils
ER  -