Yale, P. (2000). The business of tour operations. Harlow [England]: Pearson Education.
शिकागो स्टाइल उद्धरणYale, Pat. The Business of Tour Operations. Harlow [England]: Pearson Education, 2000.
एमएलए उद्धरणYale, Pat. The Business of Tour Operations. Harlow [England]: Pearson Education, 2000.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.