OKEKE, J. A. N. “THE GEOLOGICAL SURVEY OF NIGERIA LIBRARY: A PROFILE”. NigerBiblios: Journal of National Library of Nigeria 8, no. 2 (August 20, 2025): 39–41. Accessed August 25, 2025. https://nigerbiblios.nln.gov.ng/index.php/nigerbiblios/article/view/390.