William L. Langer (March 16, 1896–December 26, 1977) was professor of history at Harvard University.

Bibliography

With "E" of the First Gas, by Sergeant William L. Langer and Private Robert B. MacMullin. Brooklyn: Holton, 1919.

European alliances and alignments, 1871-1890, by William L. Langer. New York, A. A. Knopf, 1931. Reprint, Westport, Conn.: Greenwood Press, 1977.

An encyclopedia of world history, ancient, medieval and modern, chronologically arranged. Boston: Houghton Mifflin, 1940; 6th ed., rev. and expanded. Peter N. Stearns, general editor. Boston: Houghton Mifflin, 2001.

Map studies in European history and international relations, by Wilson Leon Godshall under the editorship of William L. Langer. Boston, New York: Houghton Mifflin, 1940.

Our Vichy gamble, by William L. Langer. New York: A. A. Knopf, 1947.

European alliances and alignments, 1871-1890. 2d ed. New York: Knopf, 1950.

The challenge to isolation, 1937-1940, by William L. Langer and S. Everett Gleason. 1st ed. New York: Published for the Council on Foreign Relations by Harper, 1952.

The undeclared war, 1940-1941, by William L. Langer and S. Everett Gleason. 1st ed. New York: Published for the Council on Foreign Relations by Harper, 1953.

Gas and flame in World War I, by William L. Langer. New York: Knopf, 1965.

The Franco-Russian Alliance, 1890-1894. New York: Octagon Books, 1967; 1929.

Western civilization, by Paul MacKendrick [and others] William L. Langer, general editor. 2 vols. New York: American Heritage, 1968.

The undeclared war, 1940-1941, by William L. Langer and S. Everett Gleason. Gloucester, Mass.: P. Smith, 1968; 1953.

Explorations in crisis; papers on international history, by William L. Langer. Edited by Carl E. Schorske and Elizabeth Schorske. Cambridge: Belknap Press of Harvard University Press, 1969.

Political and social upheaval, 1832-1852, by William L. Langer. 1st ed. New York: Harper & Row, 1969.

The revolutions of 1848, by William L. Langer. Political and social upheaval. Selections. New York: Harper & Row, 1971; 1969.

In and out of the ivory tower: the autobiography of William L. Langer. New York: N. Watson Academic Publications, 1977.