algar：您好, 回覆問題如後:餐旅相關西文書若用美國國會分類法, 可參考的類號如下--TX901-946.5 Hospitality industry. Hotels, clubs, restaurants, etc. Food serviceG149-180 Travel. Voyages and travels (General)G154.9-155.8 Travel and state. TourismGV1-1860 Recreation. Leisure上述是可能相關的類號, 基本上還是得按書的內容來歸類, 譬如, 一本講餐旅法規的書, 可能被歸入K法律類, 建議可以查Library of Congress Online Catalog。錢月蓮敬答 20150109