APA (7th ed.) Citation

(1991). The earth observer: A bimonthly EOS publication. Goddard Space Flight Center.

Chicago Style (17th ed.) Citation

The Earth Observer: A Bimonthly EOS Publication. Greenbelt, Md: Goddard Space Flight Center, 1991.

MLA (9th ed.) Citation

The Earth Observer: A Bimonthly EOS Publication. Goddard Space Flight Center, 1991.

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