APA (7th ed.) Citation

Merrill, R. T. c. 2. J. (1983). The earth's magnetic field: Its history, origin and planetary perspective. Academic Press.

Chicago Style (17th ed.) Citation

Merrill, Ronald T. ca. 20./21. Jh. The Earth's Magnetic Field: Its History, Origin and Planetary Perspective. London: Academic Press, 1983.

MLA (9th ed.) Citation

Merrill, Ronald T. ca. 20./21. Jh. The Earth's Magnetic Field: Its History, Origin and Planetary Perspective. Academic Press, 1983.