Cita APA (7a ed.)

Joyce, G. H. (1923). Principles of Natural Theology. Longmans, Green & Co.

Cita Chicago Style (17a ed.)

Joyce, George Hayward. Principles of Natural Theology. London: Longmans, Green & Co, 1923.

Cita MLA (9a ed.)

Joyce, George Hayward. Principles of Natural Theology. Longmans, Green & Co, 1923.