APA (7th ed.) Citation

Webb, T. W., & Espin, T. E. (1911). Celestial objects for common telescopes revised. Longmans, Green.

Chicago Style (17th ed.) Citation

Webb, T. W., and T. E. Espin. Celestial Objects for Common Telescopes Revised. London [etc.]: Longmans, Green, 1911.

MLA (9th ed.) Citation

Webb, T. W., and T. E. Espin. Celestial Objects for Common Telescopes Revised. Longmans, Green, 1911.