APA Style
Riordan, Rick. ().
Heroes of Olympus, The, Book Four the House of Hades .
:
.
Chicago Style
Riordan, Rick.
Heroes of Olympus, The, Book Four the House of Hades.
:
,
.
Book.
MLA Style
Riordan, Rick.
Heroes of Olympus, The, Book Four the House of Hades.
:
,
.
Book.
Turabian Style
Riordan, Rick.
Heroes of Olympus, The, Book Four the House of Hades.
:
,
.
Book.