Koch, A. Robert.
Economic principles : growth and environment / A. Robert Koch. - AVI Publishing Co. 1986.
115
Economics.
Economic development.
Land use.
Supply and demand.
HB171.5 / Koc.
Economic principles : growth and environment / A. Robert Koch. - AVI Publishing Co. 1986.
115
Economics.
Economic development.
Land use.
Supply and demand.
HB171.5 / Koc.