Gaya APA
Levitt , theodore. (1986).
Harvard Business Review Nos. 1-3 1986 .
USA:
Harvard Business Review.
Gaya Chicago
Levitt , theodore.
Harvard Business Review Nos. 1-3 1986.
USA:
Harvard Business Review,
1986.
Monograf.
Gaya MLA
Levitt , theodore.
Harvard Business Review Nos. 1-3 1986.
USA:
Harvard Business Review,
1986.
Monograf.
Gaya Turabian
Levitt , theodore.
Harvard Business Review Nos. 1-3 1986.
USA:
Harvard Business Review,
1986.
Monograf.