Cita APA (7th ed.)

Del Pilar, R. S. H. (1993). Data envelopmental analysis: A new approach to efficiency measurement [sound cassette]. s.n.].

Cita Chicago (17th ed.)

Del Pilar, Rafaela S. H. Data Envelopmental Analysis: A New Approach to Efficiency Measurement [sound Cassette]. [.s.l: s.n.], 1993.

Cita MLA (9th ed.)

Del Pilar, Rafaela S. H. Data Envelopmental Analysis: A New Approach to Efficiency Measurement [sound Cassette]. s.n.], 1993.