Gaya APA
Hellman, Hal. (1973).
The city the world of the future .
USA:
Dell Publishing Co., Inc..
Gaya Chicago
Hellman, Hal.
The city the world of the future.
USA:
Dell Publishing Co., Inc.,
1973.
Text.
Gaya MLA
Hellman, Hal.
The city the world of the future.
USA:
Dell Publishing Co., Inc.,
1973.
Text.
Gaya Turabian
Hellman, Hal.
The city the world of the future.
USA:
Dell Publishing Co., Inc.,
1973.
Print.