APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.