Where to Find Travel Research Facts
本文列出了旅游、旅行和休闲领域的信息来源，分为索引服务、书目、期刊、行业协会、政府、年鉴、会议录等八类，并概述了每类来源提供的信息类型。
This article presents a comprehensive list of sources of information available on tourism, travel, and recreation. It is divided into eight sections: Indexing Services; Bibliographies and Finding Guides; Periodicals; Trade Associations; Government; Yearbooks, Annuals, Handbooks, etc.; Proceedings; and Some Final Suggestions. A summary of the type of information available in each source is also provided.