The ISBN of Poseidon's Gold is 0099515091.
The ISBN of Murphy's Gold is 0802740782.
The ISBN of Gold By The Inch is 0802136494.
The ISBN of A Deadly Shade of Gold is 9780449224427.
The ISBN of Inca Gold is 0-671-68156-7.
The ISBN of Dark Gold is 0-505-52375-2.
The ISBN of Predator's Gold is 0-439-97734-7.
The ISBN of The Meadows of Gold is 0-7103-0246-0.
The ISBN of White Gold Wielder is 978-0-345-30307-3.
The ISBN of Bitter Gold Hearts is 0-451-15371-5.
The ISBN of Gold Diggers - novel - is 978-0-00-726239-7.
The ISBN of The Gold Coast - DeMille novel - is 0-446-51504-3.