Document Type : Original Article
Taherzadeh,E . (2018). coal. Encyclopedia of Economics, 1(1), 1-1.
Taherzadeh,E . "coal", Encyclopedia of Economics, 1, 1, 2018, 1-1.
Taherzadeh E. (2018). 'coal', Encyclopedia of Economics, 1(1), pp. 1-1.
E Taherzadeh, "coal," Encyclopedia of Economics, 1 1 (2018): 1-1,
Taherzadeh E. coal. Encyclopedia of Economics. 2018;1(1):1-1 (In Persian).