Uitgevers NWIDI Press

Cover for R. J. Archer · Tractrix (Seeds of Civilization) (Paperback Book) [2nd edition] (2006)

Tractrix (Seeds of Civilization) (2006)

Cover for R.j. Archer · Tsubute (Seeds of Civilization) (Paperback Book) (2006)

Tsubute (Seeds of Civilization) (2006)

Cover for R.j. Archer · Triangle (Seeds of Civilization) (Paperback Book) (2008)

Triangle (Seeds of Civilization) (2008)

Cover for R. J. Archer · The Scientists (Parallel Ops) (Paperback Book) (2012)

The Scientists (Parallel Ops) (2012)

Cover for R. J. Archer · The Informants (Parallel Ops) (Paperback Book) (2012)

The Informants (Parallel Ops) (2012)

Cover for R. J. Archer · The Guardians (Parallel Ops) (Paperback Book) (2012)

The Guardians (Parallel Ops) (2012)

Cover for R. J. Archer · The Teachers (Parallel Ops) (Paperback Book) (2013)

The Teachers (Parallel Ops) (2013)