TY  - BOOK
AU  - Davidoff,Philip G.
AU  - Davidoff,Doris S.
TI  - Worldwide tours: a travel agent's guide to selling tours 
SN  - 9780139648915
AV  - G155.A1 D353 1990
U1  - 338.4/79102373 DAV 20
PY  - 1990///
CY  - Englewood Cliffs, N.J.
PB  - Prentice Hall
KW  - Package tours
N1  - "A National Publishers book."
ER  -