United States coals available for export trade,
APA Citation
Manning, V. Hartrog. (1916). United States coals available for export trade. [Rev. ed.] Washington: Govt. print. off..
MLA Citation
Manning, Vannoy Hartrog, 1861-. United States Coals Available for Export Trade. [Rev. ed.] Washington: Govt. print. off., 1916.
Warning: These citations may not always be complete (especially for serials).