Two different books are combined in one listing

[Juan]

The author J.W. Rinzler has written two separate books “The Making of Alien” and “The Making of Aliens” These are currently combined as different editions of the same book, but they are distinct, just as the movies Alien and Aliens are two different movies. “The Making of Aliens” should be separated out into its own entry

https://www.goodreads.com/book/show/4...

[Bruno]

They are now separated:
https://www.goodreads.com/work/editio...
https://www.goodreads.com/work/editio...