Παραπομπή APA

Engisch, B. C. (1980). Economic feasibility of using crop residues to generate electricity in Iowa. Ames: Center for Agricultural and Rural Development. Iowa State University.

Παραπομπή Chicago Style

Engisch, Burton C. Economic Feasibility of Using Crop Residues to Generate Electricity in Iowa. Ames: Center for Agricultural and Rural Development. Iowa State University, 1980.

Παραπομπή MLA

Engisch, Burton C. Economic Feasibility of Using Crop Residues to Generate Electricity in Iowa. Ames: Center for Agricultural and Rural Development. Iowa State University, 1980.

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