APA (7th ed.) Citation

Smithsonian Institution. Office of the Secretary & Abbot, C. G. (1925). Provisional solar-constant values, Aug. 1920 to Nov. 1924. [publisher not identified].

Chicago Style (17th ed.) Citation

Smithsonian Institution. Office of the Secretary and C. G. Abbot. Provisional Solar-constant Values, Aug. 1920 to Nov. 1924. Washington, D.C.: [publisher not identified], 1925.

MLA (9th ed.) Citation

Smithsonian Institution. Office of the Secretary and C. G. Abbot. Provisional Solar-constant Values, Aug. 1920 to Nov. 1924. [publisher not identified], 1925.