Saunders, J. B., & Perch-Nielsen, K. (1985). Plankton stratigraphy. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Saunders, John B., agus Katharina Perch-Nielsen. Plankton Stratigraphy. Cambridge: Cambridge University Press, 1985.
Lua MLA (9ú heag.)Saunders, John B., agus Katharina Perch-Nielsen. Plankton Stratigraphy. Cambridge University Press, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.