Gerrit Roos has written:
'Comparative researches on the variation of the constituents of coal of one seam from south Limburg (the Netherlands)'
Gerhard Roos has written: 'Eliten'
Gerrit Grobben has written: 'De eendenkooi'
Gerrit Engelke has written: 'Das Gesamtwerk'
Gerrit Frotscher has written: 'Besteuerung bei Insolvenz'
Gerrit Mannoury has written: 'Mathesis en mystiek'
Gerrit Snyder has written: 'The soul-winner's Gospel'
Robert Roos has written: 'Warren and related families'
Roos Theuws has written: 'Roos Theuws' -- subject(s): Exhibitions, Conceptual art
Gerrit J. Dimmendaal has written: 'The Turkana language'
Gerrit Willem Overdijkink has written: 'Het Indonesische probleem'
Gerrit Jan Held has written: 'Papoea's van Waropen'
Betty Roos has written: 'Bonsai-kinderen' 'Galila van Galilea'