共 44 条
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- [2] TRADE WITHOUT RULERS - PRE-COLONIAL ECONOMIC-DEVELOPMENT IN SOUTHEASTERN NIGERIA - NORTHRUP,D BULLETIN OF THE SCHOOL OF ORIENTAL AND AFRICAN STUDIES-UNIVERSITY OF LONDON, 1980, 43 : 171 - 172
- [3] TRADE WITHOUT RULERS - PRE-COLONIAL ECONOMIC-DEVELOPMENT IN SOUTHEASTERN NIGERIA - NORTHRUP,D HISTORIAN, 1980, 43 (01): : 135 - 136
- [5] TRADE WITHOUT RULERS - PRE-COLONIAL ECONOMIC-DEVELOPMENT IN SOUTHEASTERN NIGERIA - NORTHRUP,D AMERICAN HISTORICAL REVIEW, 1979, 84 (05): : 1445 - 1446
- [6] TRADE WITHOUT RULERS - PRE-COLONIAL ECONOMIC-DEVELOPMENT IN SOUTHEASTERN NIGERIA - NORTHRUP,D AFRICA, 1981, 51 (01): : 544 - 545
- [9] TRADE WITHOUT RULERS - PRE-COLONIAL ECONOMIC-DEVELOPMENT IN SOUTHEASTERN NIGERIA - NORTHRUP,D JOURNAL OF AFRICAN HISTORY, 1982, 23 (01): : 123 - 125
- [10] TRADE WITHOUT RULERS - PRE-COLONIAL ECONOMIC-DEVELOPMENT IN SOUTHEASTERN NIGERIA - NORTHRUP,D CAHIERS D ETUDES AFRICAINES, 1980, 20 (04): : 523 - 523