Gaya APA
Drucker, Peter Ferdinand. (1982).
The Changing world of the executive / Peter Ferdinand Drucker .
New York:
Truman Talley Books.
Gaya Chicago
Drucker, Peter Ferdinand.
The Changing world of the executive / Peter Ferdinand Drucker.
New York:
Truman Talley Books,
1982.
.
Gaya MLA
Drucker, Peter Ferdinand.
The Changing world of the executive / Peter Ferdinand Drucker.
New York:
Truman Talley Books,
1982.
.
Gaya Turabian
Drucker, Peter Ferdinand.
The Changing world of the executive / Peter Ferdinand Drucker.
New York:
Truman Talley Books,
1982.
.