Whirlybirds: A History of the U.S. Helicopter Pioneers girro 2014年2月9日 14 阅读 0 评论 交通运输 Whirlybirds: A History of the U.S. Helicopter Pioneers by: Jay P. Spenser Publisher: University of Washington Print length: 497 Publication Date: 1998-10 ISBN-10: 0295976993 ISBN-13: 9780295976990 < 资源下载资源下载价格10元立即购买