APA (7th ed.) Citation

Merrill, R. T., & McElhinny, M. W. (1983). The earth's magnetic field: Its history, origin and planetary perspective. Academic Press.

Chicago Style (17th ed.) Citation

Merrill, Ronald T., and M. W. McElhinny. The Earth's Magnetic Field: Its History, Origin and Planetary Perspective. London ; New York: Academic Press, 1983.

MLA (9th ed.) Citation

Merrill, Ronald T., and M. W. McElhinny. The Earth's Magnetic Field: Its History, Origin and Planetary Perspective. Academic Press, 1983.