APA aipamena

DRUCKER PETER F. (1999). FRONTIERS OF MANAGEMENT. TRUMAN TALLEY BOOKS.

Chicago Style aipamena

DRUCKER PETER F. FRONTIERS OF MANAGEMENT. TRUMAN TALLEY BOOKS, 1999.

MLA aipamena

DRUCKER PETER F. FRONTIERS OF MANAGEMENT. TRUMAN TALLEY BOOKS, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.