Clawson-knetsch method — One method for using travel costs to estimate the recreational value of a resource.

柯罗文-肯塔斯方法——一个用旅行成本来来评估资源娱乐价值的方法。

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'Some people sleep right here on the floor, so they can get closer to the spirit of Mrs Borden, ' says official guide Will Clawson.

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Clawson introduced Stilton Gold to celebrate the dairy's centenary this year, and it has already gotten nearly 1, 000 inquiries from prospective buyers.

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Clawson called on the FBI to either charge Hatfill or clear him.

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