Castle, D. (1974). Crativity: A tool Of Development In Business. St. Paul's Society.
शिकागो स्टाइल उद्धरणCastle, Derek. Crativity: A Tool Of Development In Business. Allahabad: St. Paul's Society, 1974.
एमएलए उद्धरणCastle, Derek. Crativity: A Tool Of Development In Business. St. Paul's Society, 1974.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.