"0, . "
sustainable food production in sub-saharan africa: / - 1 ed. - india : international institute 1992. - ", 195p.; 25 cm."
978 131 086 3
--
631. 09 5 sos
sustainable food production in sub-saharan africa: / - 1 ed. - india : international institute 1992. - ", 195p.; 25 cm."
978 131 086 3
--
631. 09 5 sos