Dokumentuaren aipamena

APA (7th ed.) Zitazioa
Thomas, D. (1997). Soil and water conservation manual for kenya. Soil and water conservation branch.
Chicago Style (17th ed.) Zitazioa
Thomas, D.B. Soil and Water Conservation Manual for Kenya. Nairobi, Kenya: Soil and water conservation branch, 1997.
MLA (9th ed.) Zitazioa
Thomas, D.B. Soil and Water Conservation Manual for Kenya. Soil and water conservation branch, 1997.
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