関連ワード:
what is the cover of a book called what is the front page of a book called what is the back cover of a book called what is the inside cover of a book called what is the paper cover of a book called what is the cover of a hardcover book called what is the outer cover of a book called what is the outside cover of a book called what is the cover of a hardback book called what is the cover page of a book called
