100论坛币求书Sample Size Calculations

Sample Size Calculations: Practical Methods for Engineers and Scientistsby Paul Mathews (Author)

Paperback: 338 pages
Publisher: Mathews Malnar and Bailey, Inc. (February 24, 2010)
Language: English
ISBN-10: 0615324614
ISBN-13: 978-0615324616

这书买500元左右 去网上买吧

http://books.google.com/books?id=3uqZ_81If4UC&printsec=frontcover#v=onepage&q&f=false

google book
可以网上看
但是不能下载

请问求到了吗，我当当预定了一本，3个月发货，说是疫情原因又给退款退货了