APA aipamena

(1987). International science and technology data update 1987. Washington: National Science Fuondation.

Chicago Style aipamena

International Science and Technology Data Update 1987. Washington: National Science Fuondation, 1987.

MLA aipamena

International Science and Technology Data Update 1987. Washington: National Science Fuondation, 1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.