APA引文

National Geophysical Research Institute (India). (1977). Observatories' data of the National Geophysical Research Institute, Hyderabad. National Geophysical Research Institute].

Chicago Style (17th ed.) Citation

National Geophysical Research Institute (India). Observatories' Data of the National Geophysical Research Institute, Hyderabad. [Hyderabad, India: National Geophysical Research Institute], 1977.

MLA引文

National Geophysical Research Institute (India). Observatories' Data of the National Geophysical Research Institute, Hyderabad. National Geophysical Research Institute], 1977.