Gaya APA
The Cosmic Onion. (1985).
London:
Heinemann Educational Books.
Gaya Chicago
The Cosmic Onion.
.
London:
Heinemann Educational Books,
1985.
Buku.
Gaya MLA
The Cosmic Onion.
.
London:
Heinemann Educational Books,
1985.
Buku.
Gaya Turabian
The Cosmic Onion.
London:
Heinemann Educational Books,
1985.
Buku.