Cita APA (7th ed.)

CRAWFORD, C. (1991). New products management.-- ed.3. Irwin.

Cita Chicago (17th ed.)

CRAWFORD, C.Merle. New Products Management.-- Ed.3. Homewood: Irwin, 1991.

Cita MLA (9th ed.)

CRAWFORD, C.Merle. New Products Management.-- Ed.3. Irwin, 1991.