APA (7th ed.) Citation

Zhu, Y., Hsu, W., Terrones, M., Firth, S., Grobert, N., Clark, R., . . . Walton, D. (2001). Tungsten-niobium-sulfur composite nanotubes.

Chicago Style (17th ed.) Citation

Zhu, Y., W. Hsu, M. Terrones, S. Firth, N. Grobert, R. Clark, H. Kroto, and D. Walton. Tungsten-niobium-sulfur Composite Nanotubes. 2001.

MLA (9th ed.) Citation

Zhu, Y., et al. Tungsten-niobium-sulfur Composite Nanotubes. 2001.