APA (7th ed.) Citation

Doberck, W. (1885). Observations and researches made at the Hongkong Observatory in the year [...]. Government Printers.

Chicago Style (17th ed.) Citation

Doberck, W. Observations and Researches Made at the Hongkong Observatory in the Year [...]. Hongkong: Government Printers, 1885.

MLA (8th ed.) Citation

Doberck, W. Observations and Researches Made at the Hongkong Observatory in the Year [...]. Government Printers, 1885.

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