APA (7th ed.) Citation

Sims, P. A., & Ross, R. (1988). Some Cretaceous and Palaeogene Trinacria (diatom) species. British Museum (Natural History).

Chicago Style (17th ed.) Citation

Sims, Patricia A., and Robert Ross. Some Cretaceous and Palaeogene Trinacria (diatom) Species. London: British Museum (Natural History), 1988.

MLA (9th ed.) Citation

Sims, Patricia A., and Robert Ross. Some Cretaceous and Palaeogene Trinacria (diatom) Species. British Museum (Natural History), 1988.