Ugwu, S., Nwankwo, C., & Sule, J. Characterization of groundrolls in the North-West of Niger Delta Nigeria, West Africa. Egyptian Petroleum Research Institute.
Chicago Style (17th ed.) CitationUgwu, S.A, C.N Nwankwo, and J.O Sule. Characterization of Groundrolls in the North-West of Niger Delta Nigeria, West Africa. Egyptian Petroleum Research Institute.
MLA (9th ed.) CitationUgwu, S.A, et al. Characterization of Groundrolls in the North-West of Niger Delta Nigeria, West Africa. Egyptian Petroleum Research Institute.
Warning: These citations may not always be 100% accurate.