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