APA citiranje

Struck, T. H., Schult, N., Kusen, T., Hickman, E., Bleidorn, C., McHugh, D., & Halanych, K. M. (2007). Annelid phylogeny and the status of Sipuncula and Echiura. BioMed Central.

Citação norma Chicago

Struck, Torsten H., Nancy Schult, Tiffany Kusen, Emily Hickman, Christoph Bleidorn, Damhnait McHugh, and Kenneth M. Halanych. Annelid Phylogeny and the Status of Sipuncula and Echiura. BioMed Central, 2007.

MLA citiranje

Struck, Torsten H., et al. Annelid Phylogeny and the Status of Sipuncula and Echiura. BioMed Central, 2007.