na INLIS000000000024169 Ind 0010-1218006007 A silvicultural system for natural regeneration of tropical rain forest in Suriname GRAAF, N.R. de N.R. de Graaf Wageningen Landbouwhogeschool te Wageningen 1986 250 p. : ill. ; 25 cm. 250 p. : ill. ; 25 cm. 634.0.23(883)GRAs Thesis (Doctor)-Landbouwhogeschool te Wageningen, 1986 634.0.23(883) SILVICULTURAL SYSTEMS NATURAL REGENERATION TROPICAL RAIN FORESTS SURINAM 1141/DTS/86