Cita APA

Greg, P. (1883). Without God: Negative science and natural ethics. Hurst and Blackett.

Chicago Style (17th ed.) Citation

Greg, Percy. Without God: Negative Science and Natural Ethics. London: Hurst and Blackett, 1883.

Cita MLA

Greg, Percy. Without God: Negative Science and Natural Ethics. Hurst and Blackett, 1883.