Gaya APA

Building soils for better crops : ecological managemeng for healthy soils [sumber elektronik] / Fred Magdoff, Harold Vazn Es. (2021). : .

Gaya MLA

Building soils for better crops : ecological managemeng for healthy soils [sumber elektronik] / Fred Magdoff, Harold Vazn Es. Ed. Ke- 4. : , 2021. Text.