APA (7th ed.) Citation

Smithsonian Institution & ProQuest (Firm). (1968). Smithsonian Year 1968. Annual Report of the Smithsonian Institution. [publisher not identified].

Chicago Style (17th ed.) Citation

Smithsonian Institution and ProQuest (Firm). Smithsonian Year 1968. Annual Report of the Smithsonian Institution. Washington: [publisher not identified], 1968.

MLA (9th ed.) Citation

Smithsonian Institution and ProQuest (Firm). Smithsonian Year 1968. Annual Report of the Smithsonian Institution. [publisher not identified], 1968.

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