Cita APA (7a ed.)

Scheel, H. (1998). Undesirable outputs in efficiency valuations. Euro Summer Institute.

Cita Chicago Style (17a ed.)

Scheel, Holger. Undesirable Outputs in Efficiency Valuations. Warwick: Euro Summer Institute, 1998.

Cita MLA (9a ed.)

Scheel, Holger. Undesirable Outputs in Efficiency Valuations. Euro Summer Institute, 1998.