The ISBN of Dark Congress - Buffy novel - is 1-4169-3631-9.
The ISBN of Blackout - Buffy novel - is 1-4169-1917-1.
The ISBN of Carnival of Souls - Buffy novel - is 1-4169-1182-0.
The ISBN of Unnatural Selection - Buffy novel - is 0-671-02630-5.
The ISBN of Here Be Monsters - Buffy novel - is 0-671-03921-0.
The ISBN of The Crossing - novel - is 0-394-57475-3.
The ISBN of The Dark River - novel - is 0385514298.
The ISBN of Dark Magic - novel - is 0-505-52389-2.
The ISBN of Dark Places - novel - is 978-0-307-34156-3.
The ISBN of Dark Matter - Zeh novel - is 3-89561-431-9.
The ISBN of Dark Angel - Dale novel - is 1-85242-391-9.
The ISBN of Dark Matter - Paver novel - is 978-1-409-123781.
The ISBN of Buffy the Vampire Slayer Season Eight is 1595823425.