APA (7th ed.) Citation

Baldwin, H. (1963). World War 1 : an outline history / by H. Baldwin: An outline history. Hutchinson.

Chicago Style (17th ed.) Citation

Baldwin, H. World War 1 : An Outline History / by H. Baldwin: An Outline History. Hutchinson, 1963.

MLA (9th ed.) Citation

Baldwin, H. World War 1 : An Outline History / by H. Baldwin: An Outline History. Hutchinson, 1963.

Warning: These citations may not always be 100% accurate.