Peru. Comisión demarcadora de limites peruano-bolivianos & Royal Geographical Society (Great Britain). (1918). Reports of the British officers of the Peruvian commission, diplomatic memoranda and maps of the boundary zone. Cambridge university press.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Peru. Comisión demarcadora de limites peruano-bolivianos và Royal Geographical Society (Great Britain). Reports of the British Officers of the Peruvian Commission, Diplomatic Memoranda and Maps of the Boundary Zone. [Cambridge]: Cambridge university press, 1918.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Peru. Comisión demarcadora de limites peruano-bolivianos và Royal Geographical Society (Great Britain). Reports of the British Officers of the Peruvian Commission, Diplomatic Memoranda and Maps of the Boundary Zone. Cambridge university press, 1918.