Answered By: Emma Sansby, BA (Hons) MA MCLIP Last Updated: 18 Sep, 2018 Views: 27
If it's an ebook it doesn't really matter - the content of the book will be exactly the same across all platforms.
If it's a journal, read the text next to the Access Journal link to see if there is any difference in the coverage between the different platforms. For example one platform might only offer access from 2000 to 2010, whereas another might offer access from 2000 to the present. Again, the content of the journal or article will be exactly the same across all platforms, it's just the coverage that will vary.