Cita APA (7a ed.)

Harvey, A. P. (1986). European sources of scientific and technical information (7th ed.). Longman.

Cita Chicago Style (17a ed.)

Harvey, Anthony P. European Sources of Scientific and Technical Information. 7th ed. Burnt Mill, Harlow, Essex, UK: Longman, 1986.

Cita MLA (8a ed.)

Harvey, Anthony P. European Sources of Scientific and Technical Information. 7th ed. Longman, 1986.