APA (7th ed.) Citation
Helman, J., Baltensperger, W., & Holyst, J. (1993). A SIMPLE MODEL FOR DRY FRICTION. CBPF.
Chicago Style (17th ed.) Citation
Helman, J.S, W. Baltensperger, and J.A Holyst. A SIMPLE MODEL FOR DRY FRICTION. Rio de Janeiro: CBPF, 1993.
MLA (9th ed.) Citation
Helman, J.S, et al. A SIMPLE MODEL FOR DRY FRICTION. CBPF, 1993.
Warning: These citations may not always be 100% accurate.