APA
Northern Nigeria A. G., Northern Nigeria A. G., . (1961). Report with financial statements for the year ended 31st March, 1981. : .
Chicago
Northern Nigeria Accountant General, Northern Nigeria Accountant General, . 1961. Report with financial statements for the year ended 31st March, 1981. : .
Harvard
Northern Nigeria A. G., Northern Nigeria A. G., . (1961). Report with financial statements for the year ended 31st March, 1981. : .
MLA
Northern Nigeria Accountant General, Northern Nigeria Accountant General, . Report with financial statements for the year ended 31st March, 1981. : . 1961.