APA (7th ed.) Citation

Kelder, H. (1987). On waves in the upper atmosphere.

Chicago Style (17th ed.) Citation

Kelder, Hendrikus. On Waves in the Upper Atmosphere. 1987.

MLA (9th ed.) Citation

Kelder, Hendrikus. On Waves in the Upper Atmosphere. 1987.

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