Johan Cilliers has written:
'Die genade van gehoorsaamheid ;'
A. C. Cilliers has written: 'Life on the sigmoid'
Charl J. F. Cilliers has written: 'Has winter no wisdom'
Johan van Oldenbarnevelt has written: 'Johan van Oldenbarnevelt'
Johan Vandenbroucke has written: 'Verzonnen vrouwen'
Johan Hvidtfeldt has written: 'Haandbog for danske lokalhistorikere'
Karl Johan Radstrom has written: 'Vanskapsgatan'
Johan Gerretsen has written: 'Niet-Euklidische meetkunde'
Johan Curman has written: 'En tidig Europe'
Frands Johan Ring has written: 'Thorvald Aagaard'
Carl-Johan Westholm has written: 'Se staten!'
Johan van Iseghem has written: 'Guido Gezelles \\'
Johan G. Blickman has written: 'Radiologia Pediatrica'