APA citiranje

Sutton, M. D., Briggs, D. E. G., Siveter, D. J., & Siveter, D. J. (2011). A soft-bodied lophophorate from the Silurian of England. The Royal Society.

Citação norma Chicago

Sutton, M. D., D. E. G. Briggs, David J. Siveter, and Derek J. Siveter. A Soft-bodied Lophophorate From the Silurian of England. The Royal Society, 2011.

MLA citiranje

Sutton, M. D., D. E. G. Briggs, David J. Siveter, and Derek J. Siveter. A Soft-bodied Lophophorate From the Silurian of England. The Royal Society, 2011.