Sund, R. B., Adams, D. K., & Hackett, J. K. (1980). Accent on science. C.E. Merrill Pub. Co.
Chicago Style aipamenaSund, Robert B., Donald K. Adams, and Jay K. Hackett. Accent on Science. Columbus: C.E. Merrill Pub. Co, 1980.
MLA aipamenaSund, Robert B., et al. Accent on Science. C.E. Merrill Pub. Co, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.