@INBOOK {MULONGOY:1981, title = {Exploiting the diversity in the cowpea - rhizobia symbiosis for increased cowpea production}, author = {Mulongoy, K. and Ayanaba, A. and Pulver, E. }, editor = {Emejuaiwe, S. O. and Ogunbi, O. and Sanni, S. O. }, series = {Global Impacts of Applied Microbiology}, year = {1981}, volume = {pp. 119 - 125}, type = {GIAM VI}, publisher = {Academic Press}, address = {London}, }