Gaya APA
Armstrong, Herbert W.. (1979).
The Wonderful World Tomorrow: What It Will Be Like .
New York:
Everest House.
Gaya Chicago
Armstrong, Herbert W..
The Wonderful World Tomorrow: What It Will Be Like.
New York:
Everest House,
1979.
Text.
Gaya MLA
Armstrong, Herbert W..
The Wonderful World Tomorrow: What It Will Be Like.
New York:
Everest House,
1979.
Text.
Gaya Turabian
Armstrong, Herbert W..
The Wonderful World Tomorrow: What It Will Be Like.
New York:
Everest House,
1979.
Print.