APA
Breitinger E., . (1989). Subsistence cultivation, market production and agricultural development in Ruvuma region southern Tanzania. Bayreuth: Doris Schmied.
Chicago
Breitinger Eckhard, . 1989. Subsistence cultivation, market production and agricultural development in Ruvuma region southern Tanzania. Bayreuth: Doris Schmied.
Harvard
Breitinger E., . (1989). Subsistence cultivation, market production and agricultural development in Ruvuma region southern Tanzania. Bayreuth: Doris Schmied.
MLA
Breitinger Eckhard, . Subsistence cultivation, market production and agricultural development in Ruvuma region southern Tanzania. Bayreuth: Doris Schmied. 1989.