Leland, W. G., & Mereness, N. D. (1926). Introduction to the American official sources for the economic and social history of the World War (I). Yale U.P..
Lua i Stíl Chicago (17ú heag.)Leland, Waldo G., agus Newton D. Mereness. Introduction to the American Official Sources for the Economic and Social History of the World War (I). New Haven: Yale U.P., 1926.
Lua MLA (8ú heag.)Leland, Waldo G., agus Newton D. Mereness. Introduction to the American Official Sources for the Economic and Social History of the World War (I). Yale U.P., 1926.
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