All The Official Albums Chart Number 1s
Best Selling Albums Since 1991 (Soundscan Era): Adele Joins Elite Club – Billboard
30 Years Ago, The Billboard Hot 100 Singles Were Forever Changed By Broadcast Data Systems and SoundScan – Billboard Chart Rewind
Billboard Hot 100 Spotlight: November 23rd, 1991 – Billboard Chart Rewind
25 Essential Rock Albums Turning 25 in 2016 – Billboard
Billboard Top Hits: 1991 - Wikipedia
1991 Music: The Best Musical Year of the '90s | Billboard – Billboard
1991 - Billboard Top 100 on Spotify
Stepping Into The '90s: 1991 – Billboard Chart Rewind
Metallica's 'Black Album' in Top 10 on Billboard 200 After 30th Anniversary Reissue – Billboard
Why 1991 Had the Best 6-Month Release Period in Rock History
The 50 best albums from 1991 | Kerrang!
30 Years Ago, The Billboard Hot 100 Singles Were Forever Changed By Broadcast Data Systems and SoundScan – Billboard Chart Rewind
Billboard Albums of 1991 - Rate Your Music
Top 10 Albums of 1991
Dave's Music Database: Billboard's Longest-Charting Albums
Upcoming100 Rewinding the Charts: In 1991, Garth Brooks Lassoed History
Top 10 Albums of 1991
Stepping Into The '90s: 1991 – Billboard Chart Rewind
Drake's 'Certified Lover Boy' & More Albums With Most Top 10 Hot 100 Hits – Billboard
30 Years Ago, The Billboard Hot 100 Singles Were Forever Changed By Broadcast Data Systems and SoundScan – Billboard Chart Rewind
List of Billboard 200 number-one albums of 1991 - Wikipedia
1991 Music: The Best Musical Year of the '90s | Billboard – Billboard
