The Ecolitan Operation
L. E. Modesitt Jr.
Ecolitan Matter (1)
The Ecologic Secession
Ecolitan Matter (2)
Empire and Ecolitan
Ecolitan Matter (2.50)
The Ecologic Envoy
Ecolitan Matter (3)
The Ecolitan Enigma
Ecolitan Matter (4)
Ecolitan Prime
Ecolitan Matter (4.50)