APA (7th ed.) Citation

Percy, J., & Szpigiel, M. (2025). Long Secondary Periods in Red Giants: AAVSO Observations and the Eclipse Hypothesis.

Chicago Style (17th ed.) Citation

Percy, John, and Melanie Szpigiel. Long Secondary Periods in Red Giants: AAVSO Observations and the Eclipse Hypothesis. 2025.

MLA (9th ed.) Citation

Percy, John, and Melanie Szpigiel. Long Secondary Periods in Red Giants: AAVSO Observations and the Eclipse Hypothesis. 2025.

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