APA (7th ed.) Citation

Helm, P. (2010). Calvin at the centre. Oxford University Press.

Chicago Style (17th ed.) Citation

Helm, Paul. Calvin at the Centre. Oxford ; New York: Oxford University Press, 2010.

MLA (9th ed.) Citation

Helm, Paul. Calvin at the Centre. Oxford University Press, 2010.

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