Groninger Museum, Groningen; Boersma, J. W.; Boiten, E. A. J.; Cornips, M. H. N. G.; Haks, Frans; Ter Hofstede, P. M.; Jorg, C. J. A.; Kolsteren, S. T. C.
International Society for Horticultural Science. Section for Ornamental Plants; International Society for Horticultural Science. Commission Protected Cultivation; Heij, Gerjan; de Lint, P. J. A. L.
Uitgever:
Wageningen : International Society for Horticultural Science, 1987