एपीए उद्धरण

Merril, R. T., & Mcelhinny, M. W. (1983). Earth's magnetic field: Its history, origin and planetary perspective. Academic Press.

शिकागो स्टाइल उद्धरण

Merril, Ronald T., और Michael W. Mcelhinny. Earth's Magnetic Field: Its History, Origin and Planetary Perspective. London: Academic Press, 1983.

एमएलए उद्धरण

Merril, Ronald T., और Michael W. Mcelhinny. Earth's Magnetic Field: Its History, Origin and Planetary Perspective. Academic Press, 1983.