Harrison, P. (1996). The greening of Africa: Breaking through in the battle for land and food ([2nd ed.].). Academy Science Publishers : Friends-of-the-Book Foundation.
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Chicago Style (17th ed.) Zitazioa
Harrison, Paul. The Greening of Africa: Breaking Through in the Battle for Land and Food. [2nd ed.]. Nairobi, Kenya: Academy Science Publishers : Friends-of-the-Book Foundation, 1996.
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MLA (9th ed.) Zitazioa
Harrison, Paul. The Greening of Africa: Breaking Through in the Battle for Land and Food. [2nd ed.]. Academy Science Publishers : Friends-of-the-Book Foundation, 1996.
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Kontuz: berrikusi erreferentzia hauek erabili aurretik.