If there is a book I'm interested in and I don't see it at the bookstore, I'll borrow it from the library first. If I like it, I'll order a copy at the bookstore.
この場合、次のような言い方ができますよ。
ーIf there is a book I'm interested in and I don't see it at the bookstore, I'll borrow it from the library first. If I like it, I'll order a copy at the bookstore.
「本屋に興味のある本が売ってなかったら、まず図書館で借りて、おもしろかったら本屋で注文する」
to borrow a book で「本を借りる」
ご参考まで!