Rama is a 7-book series with 7 primary works first released in 1973 with contributions by Arthur C. Clarke and Gentry Lee.
1973 • 613 Readers • 112 pages • 3.9
1995 • 4 Readers • 2
1999 • 4 Readers
1989 • 95 Readers • 508 pages • 3.3
1991 • 72 Readers • 593 pages • 3.1
1993 • 58 Readers • 616 pages • 3.3
2000 • 1 Reader