TY  - BOOK
AU  - Cruz, Zenaida L.
TI  - Principles and ethics of tour guiding 
SN  - 9789712351006
AV  - G 155.A1 .C68 2008
PY  - 2008///
CY  - Manila
PB  - Rex Book Store
N1  - Includes bibliographical references and index; BSBA
ER  -