Cita APA (7a ed.)

(1989). European biographical directory (8th ed. 1989-1990.). Database.

Cita Chicago Style (17a ed.)

European Biographical Directory. 8th ed. 1989-1990. Waterloo: Database, 1989.

Cita MLA (9a ed.)

European Biographical Directory. 8th ed. 1989-1990. Database, 1989.