Cita APA (7a ed.)

(1989). European sources of scientific and technical information (8th ed.). Longman.

Cita Chicago Style (17a ed.)

European Sources of Scientific and Technical Information. 8th ed. Harlow: Longman, 1989.

Cita MLA (9a ed.)

European Sources of Scientific and Technical Information. 8th ed. Longman, 1989.