Cita APA (7th ed.)

Joyce, R., & Kirchin, S. (2010). A World Without Values: Essays on John Mackie's Moral Error Theory. Springer Netherlands. https://doi.org/10.1007/978-90-481-3339-0

Cita Chicago (17th ed.)

Joyce, Richard, i Simon Kirchin. A World Without Values: Essays on John Mackie's Moral Error Theory. Dordrecht: Springer Netherlands, 2010. https://doi.org/10.1007/978-90-481-3339-0.

Cita MLA (9th ed.)

Joyce, Richard, i Simon Kirchin. A World Without Values: Essays on John Mackie's Moral Error Theory. Springer Netherlands, 2010. https://doi.org/10.1007/978-90-481-3339-0.