The ISBN of The Merchants of Souls is 0765303302.
The ISBN of The Lake of Souls is 9780316154376.
The Merchants of Souls was created in 2001-11.
The ISBN of The Mirror of Simple Souls is 0809134276.
The ISBN of Paladin of Souls is 0-380-97902-0.
The ISBN of Twisted Souls is 0-7515-3523-0.
The ISBN of Merchants of Doubt is 978-1-59691-610-4.
The ISBN of Lord of Souls is 978-0-345-50802-7.
The ISBN-13 for "The Merchants' War" novel by Frederik Pohl is 978-0765347222.
The ISBN of Exiles at the Well of Souls is 0-7434-3603-2.
The ISBN of Souls in the Great Machine is 0-7653-4457-2.
The ISBN of Quest for the Well of Souls is 0-7434-7153-9.
The ISBN of Midnight at the Well of Souls is 0-7434-3522-2.