APA (7th ed.) Citation

Wallace, R. (2000). Apollonius of Perge. Mathematician and astronomer of the 3rd century BC.

Chicago Style (17th ed.) Citation

Wallace, Richard. Apollonius of Perge. Mathematician and Astronomer of the 3rd Century BC. 2000.

MLA (9th ed.) Citation

Wallace, Richard. Apollonius of Perge. Mathematician and Astronomer of the 3rd Century BC. 2000.

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