Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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