na INLIS000000000004320 20220414104817 0010-1021000024 220414 g 0 eng Subsistence agriculture and economic development / Clifton R. Wharton Wharton, Clifton R. Chicago : Aldine, 1970 xiii, 481 p.: ill.; 26 cm. ; 26 cm. 631 SUB 631 SUBSISTENCE FARMING ECONOMIC DEVELOPMENT Incl. Index 594/KA/2021 5/75