Cita APA (7a ed.)

Olshfski, D., & Joseph, A. (1991). Assessing training needs of executives using the Delphi technique. [s.n.].

Cita Chicago Style (17a ed.)

Olshfski, Dorothy, y Alma Joseph. Assessing Training Needs of Executives Using the Delphi Technique. [S.l.]: [s.n.], 1991.

Cita MLA (9a ed.)

Olshfski, Dorothy, y Alma Joseph. Assessing Training Needs of Executives Using the Delphi Technique. [s.n.], 1991.