If you only know the author, just look it up in the author catalog.

如果你只知道作者，那就查作者目录。

youdao

Have you checked in the catalog under author and title?

你查过作者和书名目录了吗？

youdao

Have you checked in the catalog under author and title?

你查过作者和书名目录了吗？

youdao