APA aipamena

Nowell, D., & Hills, D. (1989). HERTZIAN CONTACT OF GROUND SURFACES.

Chicago Style aipamena

Nowell, D., and D. Hills. HERTZIAN CONTACT OF GROUND SURFACES. 1989.

MLA aipamena

Nowell, D., and D. Hills. HERTZIAN CONTACT OF GROUND SURFACES. 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.