Cita APA (7th ed.)

Behrens, W. (1991). Manual for the preparation of industrial feasibility studies. UNIDO.

Cita Chicago (17th ed.)

Behrens, W. Manual for the Preparation of Industrial Feasibility Studies. Vienna: UNIDO, 1991.

Cita MLA (9th ed.)

Behrens, W. Manual for the Preparation of Industrial Feasibility Studies. UNIDO, 1991.