APA (7th ed.) Citation

De Meyer, F. (1997). Modulation of the sunspot cycle. Koninklijk Meteorologisch Institut van Belgie.

Chicago Style (17th ed.) Citation

De Meyer, F. Modulation of the Sunspot Cycle. Brussel: Koninklijk Meteorologisch Institut van Belgie, 1997.

MLA (9th ed.) Citation

De Meyer, F. Modulation of the Sunspot Cycle. Koninklijk Meteorologisch Institut van Belgie, 1997.

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