APA (7th ed.) Citation

Kärnfelt, J. (2024). "Excellentissimo tubo Dollondiana": The Stockholm Observatory's 10-foot Dollond achromatic refractor.

Chicago Style (17th ed.) Citation

Kärnfelt, Johan. "Excellentissimo Tubo Dollondiana": The Stockholm Observatory's 10-foot Dollond Achromatic Refractor. 2024.

MLA (9th ed.) Citation

Kärnfelt, Johan. "Excellentissimo Tubo Dollondiana": The Stockholm Observatory's 10-foot Dollond Achromatic Refractor. 2024.

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