Letters from the Editors of National Lampoon was created in 1973-04.
National Lampoon - magazine - was created in 1970.
The Breast of National Lampoon was created in 1972.
National Lampoon Songbook was created in 1976.
National Lampoon Lemmings was created in 1973.
National Lampoon Comics was created in 1974.
National Lampoon's Doon was created in 1984-11.
The National Lampoon Encyclopedia of Humor was created in 1973.
National Lampoon's Vacation was created on 1983-07-29.
National Lampoon The Iron On Book was created in 1976.
National Lampoon's Pucked was created on 2006-02-10.
National Lampoon's Gold Diggers was created in 2004.
National Lampoon This Side of Parodies was created in 1974.