APA (7th ed.) Zitazioa
Kramer, S. L. (1996). Geotechnical earthquake engineering. Pearson Education.
Chicago Style (17th ed.) Zitazioa
Kramer, Steven L. Geotechnical Earthquake Engineering. Delhi: Pearson Education, 1996.
MLA (9th ed.) Zitazioa
Kramer, Steven L. Geotechnical Earthquake Engineering. Pearson Education, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.