TY  - BOOK
AU  - Harper,Robert Alexander
AU  - Schmudde,Theodore Henry
TI  - Between two worlds: an introduction to geography 
SN  - 0395251648
U1  - 910 
PY  - 1978///
CY  - Boston, MA.
PB  - Houghton Mifflin
KW  - Geografía
KW  - Libros de texto
ER  -