TY  - BOOK
ED  - National Research Council (U.S.). Board on Agriculture and Renewable Resources
TI  - Urea and other nonprotein nitrogen compounds in animal nutrition
SN  - 0309024447
PY  - 1976///
CY  - Washington
PB  - National Academy of Sciences
KW  - Urea as feed
KW  - Nitrogen in animal nutrition
KW  - Proteins in animal nutrition
N1  - Bibliography: p.97-120
ER  -