एपीए उद्धरण

Michael Lacewing. (2010). Philosophy for A2: Unit 4 philosophical problems. Routledge.

शिकागो स्टाइल उद्धरण

Michael Lacewing. Philosophy for A2: Unit 4 Philosophical Problems. London: Routledge, 2010.

एमएलए उद्धरण

Michael Lacewing. Philosophy for A2: Unit 4 Philosophical Problems. Routledge, 2010.