He's co-authored a book on Policy for Tourism.

他与人合著了一本有关旅游业政策的书。

《柯林斯英汉双解大词典》

Dedicated to the families and friends of substance abusers, and the professionals who work with them, “Drugs and Drug Policy” is a practical book which aims to debunk myths.

《毒品与毒品政策》一书致力于为瘾君子的家庭和朋友以及与其共事的专业人士服务，旨在披露事实。 该书实为一本实用之书。

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There is a discussion at the end of the book about what the correct road-building policy should be.

书的最后谈到，怎样的公路修建政策才算正确。

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The British economist John Maynard Keynes published an influential book that supported the same policy.

VOA: special.2011.04.07

They have forgiven foibles, such as his past drinking, outrageous remarks and angry outbursts, most recently flinging a Liberal policy book at a young legislative page.

ECONOMIST: Alberta's premier outstays his welcome

Guests are notified of the no-tipping policy after they book a room and are reminded of the policy upon arrival at the hotel.

WSJ: Chicago Hotel Adopts a No-Tipping Policy

Rahm Emanuel, head of the Democratic Congressional Campaign Committee, recently produced a book of policy ideas.

ECONOMIST: The mid-term elections