APA Style
Drucker, Peter F.. (1986).
Innovation and Entrepreneurship .
New York:
Collins Business.
Chicago Style
Drucker, Peter F..
Innovation and Entrepreneurship.
New York:
Collins Business,
1986.
Buku.
MLA Style
Drucker, Peter F..
Innovation and Entrepreneurship.
New York:
Collins Business,
1986.
Buku.
Turabian Style
Drucker, Peter F..
Innovation and Entrepreneurship.
New York:
Collins Business,
1986.
Buku.