Citazione Stile APA (7a Edizione)

Stany Zjednoczone. Government Printing Office & Stany Zjednoczone. National Bureau of Standards. (1921). War Work of the Bureau of Standards: April 1, 1921. Government Printing Office.

Citazione stile Chigago Style (17a edizione)

Stany Zjednoczone. Government Printing Office e Stany Zjednoczone. National Bureau of Standards. War Work of the Bureau of Standards: April 1, 1921. Washington: Government Printing Office, 1921.

Citatione MLA (9a ed.)

Stany Zjednoczone. Government Printing Office e Stany Zjednoczone. National Bureau of Standards. War Work of the Bureau of Standards: April 1, 1921. Government Printing Office, 1921.