Παραπομπή APA

(1971). Smithsonian year 1971: Annual report of the Smithsonian Institution for the year ended 30 June 1971. Washington: Smithsonian Institution Press.

Παραπομπή Chicago Style

Smithsonian Year 1971: Annual Report of the Smithsonian Institution for the Year Ended 30 June 1971. Washington: Smithsonian Institution Press, 1971.

Παραπομπή MLA

Smithsonian Year 1971: Annual Report of the Smithsonian Institution for the Year Ended 30 June 1971. Washington: Smithsonian Institution Press, 1971.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.