International symposium on biological control implementation :
International symposium on biological control implementation : proceedings and abstracts /
sponsored by U.S. Departament of Agriculture ... [et al.].
- McAllen, Texas : NAPPO, 1989.
- iii, 208 p. ; 28 cm.
Boletin No. 6.
Incluye bibliografia.
QH508 / I58
Boletin No. 6.
Incluye bibliografia.
QH508 / I58