APA (7th ed.) Citation

Jacobs, V. L. (1973). Photoionization from excited states of helium. Goddard Space Flight Center.

Chicago Style (17th ed.) Citation

Jacobs, V. L. Photoionization from Excited States of Helium. Greenbelt, Maryland: Goddard Space Flight Center, 1973.

MLA (9th ed.) Citation

Jacobs, V. L. Photoionization from Excited States of Helium. Goddard Space Flight Center, 1973.

Warning: These citations may not always be 100% accurate.