Cita APA

Martin, G. n. 1., & Martin, G. n. 1. (1968). General metaphysics: Its problems and its method. London, Sydney: G. Allen and Unwin.

Citación estilo Chicago

Martin, Gottfried n. 1901, y Gottfried n. 1901 Martin. General Metaphysics: Its Problems and Its Method. London, Sydney: G. Allen and Unwin, 1968.

Cita MLA

Martin, Gottfried n. 1901, y Gottfried n. 1901 Martin. General Metaphysics: Its Problems and Its Method. London, Sydney: G. Allen and Unwin, 1968.