TY  - BOOK
AU  - Orben, Robert
TI  - The ad-libber's handbook: a 2000 new laughs for speakers 
AV  - PN 6162 O69
PY  - 1969///
CY  - Garden City, N.Y.
PB  - Doubleday
KW  - Humorismo y agudezas norteamericanas
ER  -