mastered by Steve Rooke
sleeve notes Dean Rudland
Copyright (c) EMI Records Ltd.
Phonographic Copyright (p) EMI Records Ltd.
Mastered At Abbey Road Studios
Tracks 1 to 9 originally released as LP Understanding in 1972.
Tracks 10 to 17 originally released as LP Communication in 1971.
Barcode: 7 24386 60782 9
Label Code: LC0542
Other: 866 0782 (Distribution Code UK)