Gaya APA
clarke, arthur c. (1960).
profiles of the future .
New York:
fawcett popular library books.
Gaya Chicago
clarke, arthur c.
profiles of the future.
New York:
fawcett popular library books,
1960.
Buku Teks.
Gaya MLA
clarke, arthur c.
profiles of the future.
New York:
fawcett popular library books,
1960.
Buku Teks.
Gaya Turabian
clarke, arthur c.
profiles of the future.
New York:
fawcett popular library books,
1960.
Buku Teks.