- Author: Jan van der Eng, A. G. F. van Holk, Jan M. Meijer
- Language: English
- Year: 1968
- Author: Jan van der Eng, Jan M. Meijer
- Language: English
- Year: 1971
- Author: Jan van der Eng (editor), Monéir Grygar (editor)
- Language: English
- Year: 1973