By Instituto Nacional de Investigaciones Agrícolas, Inia.
, -Título BPH: Agron. Trop. (Maracay) -Existencias: 1967 índ. v.11-15; 1966-1969 v.16-19, no.1-4; 1970 índ. v.16-20; 1970-1972 v.20-22, no.1-6; 1973 v.23, no.1, 3-4; 1974 v.24, no.1-4, 6; 1975-1979 v.25-29, no.1-6; 1980-1984 v.30-34, no.1-6; 1986-1993 v.36-43, no.1-6; 1994-1997 v.44-47, no.1-4; 1998 v.48, no.1-3; 1999-2000 v.49-50, no.1-4; 2001 v.51, no.1, 3-4; 2002 v.52, no.1, 3-4; 2003-2005 v.53-55, no.1-4; 2006 v. 56, no. 1-4; 2007 v. 57 no. 1-4; 2008 v. 58 no. 1-3- 22 x 15 cm.

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, Existencias: (1962: 1-10) (1963: 13-1/3) (1964: 13-4) (1977: 27-3-4-6) ( 1978: 28-1) (1979: 29-1/3) (1999: 49-1) (2007: 57-3)

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