Penggayaan APA
Drucker. (1992).
Managing for the future : the 1990s and beyond .
New York:
Truman Talley Books.
Chicago Style
Drucker.
Managing for the future : the 1990s and beyond.
New York:
Truman Talley Books,
1992.
Text.
MLA Style
Drucker.
Managing for the future : the 1990s and beyond.
New York:
Truman Talley Books,
1992.
Text.
Turabian Style
Drucker.
Managing for the future : the 1990s and beyond.
New York:
Truman Talley Books,
1992.
Print.