Clifton, D. (2012). Hospitality security: Managing security in today''s hotel, lodging, entertainment, and tourism environment. CRC Press.
শিকাগো স্টাইলে সাইটেশনClifton, Darrell. Hospitality Security: Managing Security in Today''s Hotel, Lodging, Entertainment, and Tourism Environment. CRC Press, 2012.
এমএলএ সাইটেশনClifton, Darrell. Hospitality Security: Managing Security in Today''s Hotel, Lodging, Entertainment, and Tourism Environment. CRC Press, 2012.
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