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1
Directory of rural studies scholars and educators /
di Hatch, Carol S.
Beltsville, Md. : National Agriculture Library, 1991

Documento governativo Libro
2
Educational and training opportunities in sustainable agriculture /
di Gates, Jane Potter
Beltsville, Md. : National Agricultural Library, 1990
3rd ed.

Documento governativo Libro
3
Organic certification /
di Gates, Jane Potter
Beltsville, Md. : National Agricultural Library, 1991

Documento governativo Libro
4
Directory of research institutions in aquaculture /
di McVey, Eileen
Beltsville, Md. : National Agricultural Library, 1992

Documento governativo Libro
5
Newsletters pertaining to agricultural biotechnology /
di Warmbrodt, Robert D.
Beltsville, Md. : National Agricultural Library, 1991

Documento governativo Libro
6
Educational and training opportunities in sustainable agriculture /
di Gates, Jane Potter
Beltsville, Md. : National Agricultural Library, 1995
8th ed.

Documento governativo Libro
7
Urban agriculture : an abbreviated list of references and resource guide /
di Adeyemi, Abiola
Beltsville, Md. : USDA, ARS, National Agricultural Library, 1997

Documento governativo Libro
8
Educational and training opportunities in sustainable agriculture /
di Gates, Jane Potter
Beltsville, Md. : National Agricultural Library, 1997
10th ed.

Documento governativo Libro
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