(2019). Global Agricultural extension practices: :country by country approaches. Nova Science.
Chicago-viite (17. p.)Global Agricultural Extension Practices: :country by Country Approaches. Nova Science, 2019.
MLA-viite (9. p.)Global Agricultural Extension Practices: :country by Country Approaches. Nova Science, 2019.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.