APA引文

Hyderabad, India. National Geophysical Research Institute. Geoelectric Observatory, Srivastava, V. B., Ranga Rao, M., & Lakshmi, A. (1973). Rapid variations of earth's electromagnetic field, January-December 1975: Report of the Geoelectric Observatory. National Geophysical Research Institute.

Chicago Style (17th ed.) Citation

Hyderabad, India. National Geophysical Research Institute. Geoelectric Observatory, Vinod Behari Srivastava, M. Ranga Rao, and A. Lakshmi. Rapid Variations of Earth's Electromagnetic Field, January-December 1975: Report of the Geoelectric Observatory. Hyderabad (India): National Geophysical Research Institute, 1973.

MLA引文

Hyderabad, India. National Geophysical Research Institute. Geoelectric Observatory, et al. Rapid Variations of Earth's Electromagnetic Field, January-December 1975: Report of the Geoelectric Observatory. National Geophysical Research Institute, 1973.