APA (7th ed.) Citation

Mardev Ltd & Goodwin, L. J. (1987). Direct mail databook (5th ed.). Gower.

Chicago Style (17th ed.) Citation

Mardev Ltd and Leslie J. Goodwin. Direct Mail Databook. 5th ed. Aldershot, Hants, England ; Brookfield, Vt., U.S.A.: Gower, 1987.

MLA (8th ed.) Citation

Mardev Ltd and Leslie J. Goodwin. Direct Mail Databook. 5th ed. Gower, 1987.