TY  - BOOK
AU  - Boyland,Patricia Barrett
TI  - The Effects of tractorization in rice culture in the Philippines
PY  - 1990///
CY  - Ann Arbor, Mich.
PB  - University Microfilms International
KW  - Rice
KW  - Philippines
N1  - Thesis (Ph.D.) - University of California, Davis, 1989
ER  -