Gaya APA
Drucker, Petter f. (2008).
Management cases .
New York:
Coliins Business.
Gaya Chicago
Drucker, Petter f.
Management cases.
New York:
Coliins Business,
2008.
Text.
Gaya MLA
Drucker, Petter f.
Management cases.
New York:
Coliins Business,
2008.
Text.
Gaya Turabian
Drucker, Petter f.
Management cases.
New York:
Coliins Business,
2008.
Print.