The ISBN of My House Has Two Doors is 978-0224017022.
The ISBN of Doors Open is 0752890700.
The ISBN of The Doors of Perception is 0060595183.
My House Has Two Doors was created in 1980.
My House Has Two Doors has 672 pages.
The ISBN of The Woman Who Walked into Doors is 0-224-04272-6.
The ISBN of The Armourer's House is 0192770276.
The ISBN of Thendara House is 0879978570.
The ISBN of A House Interrupted is 0060724277.
The ISBN of A House is Built is 0727009702.
The ISBN of The House of Balthus is 1863739122.
The ISBN of The Beast House is 0747247811.
The ISBN of The Whaleboat House is 0007161921.