Afganskoe razgranichenīe : peregovory mezhdu Rossīeĭ i Velikobritanīeĭ 1872-1885 = Délimitation Afghane : négociations entre la Russie et la Grande-Bretagne 1872-1885
United States. Congress. Senate. Committee on Homeland Security and Governmental Affairs. Subcommittee on Federal Spending Oversight and Emergency Management