Cita APA (7th ed.)

Banner, F. T., Copestake, P., & White, M. R. (1993). Barremian — Aptian Praehedbergellidae of the North Sea area: A reconnaissance. Zenodo.

Cita Chicago (17th ed.)

Banner, F. T., P. Copestake, i Marigold R. White. Barremian — Aptian Praehedbergellidae of the North Sea Area: A Reconnaissance. Zenodo, 1993.

Cita MLA (9th ed.)

Banner, F. T., et al. Barremian — Aptian Praehedbergellidae of the North Sea Area: A Reconnaissance. Zenodo, 1993.