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By Shigo, Alex L., .
Durham, New Hampshire : Shigo and Trees Associates, 1986 .
132 p. 0943563054

By Niembro Rocas, Aníbal .
México D. F. : Limusa, 1986 .
130 p. 968182024X

By Robles Sánchez, Raúl.
México : Limusa, 1986 .
477 p. 9681820088

Paraná : INTA, 1986 .
95 p.

Washington D. C. : Wilderness Society; 1986 .
vi, 116 p.

By Vries, Pieter G. de .
New York : Springer, Verlag, 1986 .
x, 399 p. 03540170669 | 0387170669

Santiago, Chile : INFOR ; CORFO, 1986 .
168 p.