They were created with iBooks Autho

They were created with iBooks Author specifically for iBooks.

Results (Chinese) 1:

他们创建的 iBooks 作者专门为 iBooks。

Results (Chinese) 2:

他们用的iBooks作者专门为iBooks的创建。

Results (Chinese) 3:

他们与iBooks作者专门为创建
iBooks。