TY  - BOOK
AU  - Vibal, Victor R.
TI  - Principles of tourism
SN  - 978-971-27-2363-6/978-971-27-2267-7
AV  - 910.7 V65 
PY  - 2010///
CY  - Pasig City
PB  - Anvil Pub
N1  - Includes bibliography
ER  -