Cita APA (7a ed.)

Zieschang, K. D. (1984). An extended Farrell technical efficiency measure. [s.n.].

Cita Chicago Style (17a ed.)

Zieschang, Kimberly D. An Extended Farrell Technical Efficiency Measure. [S.l.]: [s.n.], 1984.

Cita MLA (9a ed.)

Zieschang, Kimberly D. An Extended Farrell Technical Efficiency Measure. [s.n.], 1984.