APA (7th ed.) Citation

Gassmann, G. J., & (U.S.), A. F. C. R. L. An ionospheric model for the arctic.

Chicago Style (17th ed.) Citation

Gassmann, George J., and Air Force Cambridge Research Laboratories (U.S.). An Ionospheric Model for the Arctic.

MLA (9th ed.) Citation

Gassmann, George J., and Air Force Cambridge Research Laboratories (U.S.). An Ionospheric Model for the Arctic.

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