APA (7th ed.) Citation

Clarke, J. M. Observations on the Terataspis grandis, Hall, the largest known trilobite.

Chicago Style (17th ed.) Citation

Clarke, John Mason. Observations on the Terataspis Grandis, Hall, the Largest Known Trilobite.

MLA (9th ed.) Citation

Clarke, John Mason. Observations on the Terataspis Grandis, Hall, the Largest Known Trilobite.

Warning: These citations may not always be 100% accurate.