Cita APA (7th ed.)

Clark, E., Krushelnick, K., Zepf, M., Tatarakis, M., Beg, F., Norreys, P., & Dangor, A. (2006). Clark et al. Reply.

Cita Chicago (17th ed.)

Clark, E., K. Krushelnick, M. Zepf, M. Tatarakis, F. Beg, P. Norreys, i A. Dangor. Clark Et Al. Reply. 2006.

Cita MLA (9th ed.)

Clark, E., et al. Clark Et Al. Reply. 2006.