One world, one war [cartographic material] : a map showing the line-up and the strategic stakes in this the first global war.
MLA
Harrison, Richard Edes, and inc Time. One World, One War [Cartographic Material] : a Map Showing the Line-up and the Strategic Stakes in This the First Global War. Time, 1942. https://collections.library.yale.edu/catalog/15238314.
APA, 6th edition
Harrison, R. E., & Time, inc. (1942). One world, one war [cartographic material] : a map showing the line-up and the strategic stakes in this the first global war. [Maps]. Time, https://collections.library.yale.edu/catalog/15238314.