The ISBN of Forty Thousand in Gehenna is 0-932096-26-3.
Forty Thousand in Gehenna was created in 1983-10.
The ISBN of Forty Words for Sorrow is 0679310576.
The ISBN of Knights of Forty Islands is 5-17-022344-7.
The ISBN of Forty Signs of Rain is 0-553-80311-5.
The ISBN of A Thousand Tomorrows is 1931722803.
"Forty thousand" in numbers is "40,000"
40,000 = forty thousand 7 = seven 40,007
The ISBN of A Thousand Barrels a Second is 978-0071492607.
The ISBN of A Thousand Acres is 0-394-57773-6.
The ISBN of The Forty Days of Musa Dagh is 0-978-1-56792-407-7.
The ISBN of A Million Miles in a Thousand Years is 0785213066.
Three thousand forty = 3,040