Gaya APA
The Wagner Operas ( volume 1 ). (New York).
New York:
Harper colophon books.
Gaya Chicago
The Wagner Operas ( volume 1 ).
.
New York:
Harper colophon books,
New York.
.
Gaya MLA
The Wagner Operas ( volume 1 ).
.
New York:
Harper colophon books,
New York.
.
Gaya Turabian
The Wagner Operas ( volume 1 ).
New York:
Harper colophon books,
New York.
.