Just in case this would be helpful - found the book at Barnes & Noble used book annex at HarMar (Roseville). There were 3 copies so two copies left today. It's in the biography section about third shelf down from the top on the right. By the way, it's the only B&N store in the Twin Cities that has a used book annex, and they buy back books at a much better rate than Half Price books, in my opinion.
March book Born Standing Up: A Comic's Life by Steve Martin