If to give dates in brackets, it is not necessary to write "pp." (1861 р., 1945-1947 рр., (1945-1947), XV-XVIII ст.).
Fa ponelopele e diragala fa gare ga sekwalwa ga e na maatla a a lebaganeng le kgogedi (Serudu,1989:45 le Machika, 2002:114).