Gaya APA
Barker, Joel Arthur. (1992).
Paradigms : the business of discovering the future .
America:
Joel Arthur.
Gaya Chicago
Barker, Joel Arthur.
Paradigms : the business of discovering the future.
America:
Joel Arthur,
1992.
Text.
Gaya MLA
Barker, Joel Arthur.
Paradigms : the business of discovering the future.
America:
Joel Arthur,
1992.
Text.
Gaya Turabian
Barker, Joel Arthur.
Paradigms : the business of discovering the future.
America:
Joel Arthur,
1992.
Print.