Cita APA (7a ed.)

Tinsley, D. B., & Ormsby, J. G. (1988). Improving marketing with DRP. [s.n.].

Cita Chicago Style (17a ed.)

Tinsley, Dillard B., y Joseph G. Ormsby. Improving Marketing with DRP. [S.l.]: [s.n.], 1988.

Cita MLA (9a ed.)

Tinsley, Dillard B., y Joseph G. Ormsby. Improving Marketing with DRP. [s.n.], 1988.