Gaya APA
CENTRON, MARVIN. (1982).
ENCOUNTERS WITH THE FUTURE .
USA:
MCGRAW HILL.
Gaya Chicago
CENTRON, MARVIN.
ENCOUNTERS WITH THE FUTURE.
USA:
MCGRAW HILL,
1982.
Text.
Gaya MLA
CENTRON, MARVIN.
ENCOUNTERS WITH THE FUTURE.
USA:
MCGRAW HILL,
1982.
Text.
Gaya Turabian
CENTRON, MARVIN.
ENCOUNTERS WITH THE FUTURE.
USA:
MCGRAW HILL,
1982.
Print.