Symposium on the timing of field production of vegetables : Wageningen, the Netherlands, August 21-25, 1989 / conveners and ed. R. Booij, P.H.M. Dekker
Omslagtitel: 6th Symposium on the timing of field production of vegetables
Symposium on the timing of field production of vegetables : Wageningen, the Netherlands, August 21-25, 1989