Cita APA (7th ed.)
Organic Farming: Policies & Prospects. Bloomsbury Publishing PLC.
Cita Chicago (17th ed.)
Organic Farming: Policies & Prospects. Bloomsbury Publishing PLC.
Cita MLA (9th ed.)
Organic Farming: Policies & Prospects. Bloomsbury Publishing PLC.
Atenció: Aquestes cites poden no estar 100% correctes.