Laylock, A. (2014). Irrigation Systems Design Planning And Construction. CABI.
Chicago-viite (17. p.)Laylock, Adrian. Irrigation Systems Design Planning And Construction. CABI, 2014.
MLA-viite (8. p.)Laylock, Adrian. Irrigation Systems Design Planning And Construction. CABI, 2014.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.