Παραπομπή APA

(1975). Smithsonian year 1975: Annual report of the Smithsonian Institution for the year ended June 30, 1975. Washington: Smithsonian Institution Press.

Παραπομπή Chicago Style

Smithsonian Year 1975: Annual Report of the Smithsonian Institution for the Year Ended June 30, 1975. Washington: Smithsonian Institution Press, 1975.

Παραπομπή MLA

Smithsonian Year 1975: Annual Report of the Smithsonian Institution for the Year Ended June 30, 1975. Washington: Smithsonian Institution Press, 1975.

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