Authors: Jans, Goele. --- De Wulf, R. --- Santens, M. --- Van den Brande, Luc --- Steyaert, Rika --- et al. Hertog, J. --- Zwaenepoel, R. --- Vanderjeugd, H. --- Lippens, F. --- Vijverman, J. --- Willems, J.. --- Suy, Raphaël. --- Vandeperre, A.
Year: 1984 Publisher: Brussel LICAP