Gaya APA
Drucker, Peter F.. (1986).
Innovation and Entrepreneurship: Practice and Principles .
New York:
Perennial Library.
Gaya Chicago
Drucker, Peter F..
Innovation and Entrepreneurship: Practice and Principles.
New York:
Perennial Library,
1986.
Text.
Gaya MLA
Drucker, Peter F..
Innovation and Entrepreneurship: Practice and Principles.
New York:
Perennial Library,
1986.
Text.
Gaya Turabian
Drucker, Peter F..
Innovation and Entrepreneurship: Practice and Principles.
New York:
Perennial Library,
1986.
Print.