TY  - BOOK
AU  - Willim And Marian Hass Research Fund
ED  - Willim And Marian Hass Research Fund
TI  - Rural land classification program of Puerto Rico
T2  - Northwestern University Studies In Geography, no,1
U1  - U6711:7924:N5, J2 
PY  - 1952///
KW  - Geography
ER  -