Gaya APA
The Ersatz elevator. (2001).
New York:
Scholastic.
Gaya Chicago
The Ersatz elevator.
.
New York:
Scholastic,
2001.
Buku.
Gaya MLA
The Ersatz elevator.
.
New York:
Scholastic,
2001.
Buku.
Gaya Turabian
The Ersatz elevator.
New York:
Scholastic,
2001.
Buku.