Gaya APA
Drucker, Peter F. (1985).
Innovation and Entrepreneurship: Practical and Principles .
New York:
Harper.
Gaya Chicago
Drucker, Peter F.
Innovation and Entrepreneurship: Practical and Principles.
New York:
Harper,
1985.
Text.
Gaya MLA
Drucker, Peter F.
Innovation and Entrepreneurship: Practical and Principles.
New York:
Harper,
1985.
Text.
Gaya Turabian
Drucker, Peter F.
Innovation and Entrepreneurship: Practical and Principles.
New York:
Harper,
1985.
Print.