1
Julkaistu 1956
“...United States. Foreign Agricultural Service....”
Kirja
2
3
Julkaistu 2004
“...United States. Foreign Agricultural Service....”Full text available from ABI/INFORM Trade & Industry: 03/01/1998 to 12/31/2004
Full text available from Agricultural Science Database: 03/01/1998 to 12/31/2004
Full text available from Career & Technical Education Database: 03/01/1998 to 12/31/2004
Full text available from Engineering Database: 03/01/1998 to 12/31/2004
Hallinnon asiakirja
Elektroninen
Aikakauslehti
4