TY - MANSCPT AU - Workneh Negatu. ED - Yamahbarawi tenat madrak (Ethiopia) TI - Economic interactions of pastoral lowland and highland systems and implications for sustainable livelihoods: a case study in northeastern Ethiopia SN - 9789994450435 (paperback) : U1 - ETH 338.963 Wor 2011 PY - 2011/// CY - Addis Ababa PB - Forum for Social Studies N1 - Includes bibliographical references (p. 56-57) ER -