The Darkangel Trilogy was created in 1982.
The Bounty Trilogy was created in 1936.
Songs from the Trilogy was created on 1989-08-07.
Pine Deep Trilogy was created in 2008.
Love Trilogy - film - was created on 2004-02-05.
Torch Song Trilogy - film - was created on 1988-12-14.
The Darkangel was created in 1982.
The Bounty Trilogy was created in 1936.
The Wimbledon Trilogy was created in 1993.
Gorse Trilogy was created in 1953.
Cairo Trilogy was created in 1956.
Larklight trilogy was created in 2006.
The Beaver Trilogy was created in 2001.
The Prodigal Trilogy was created in 2008.
Viking Trilogy was created in 1957.
Underworld Trilogy was created in 2010.
U.S.A. trilogy was created in 1930.
The Corellian Trilogy was created in 1995.