APA Style
\"Drucker, Peter F\". (1985).
Innovation and entrepreneurship : practice and principles .
New York:
Harper & Row.
Chicago Style
\"Drucker, Peter F\".
Innovation and entrepreneurship : practice and principles.
New York:
Harper & Row,
1985.
Books.
MLA Style
\"Drucker, Peter F\".
Innovation and entrepreneurship : practice and principles.
New York:
Harper & Row,
1985.
Books.
Turabian Style
\"Drucker, Peter F\".
Innovation and entrepreneurship : practice and principles.
New York:
Harper & Row,
1985.
Books.