Lepo, J. E., Hickok, R. E., Cantrell, M. A., Russell, S. A., & Evans, H. J. (1981). Revertible hydrogen uptake-deficient mutants of Rhizobium japonicum.

Lepo, J E., R E. Hickok, M A. Cantrell, S A. Russell, ja H J. Evans. Revertible Hydrogen Uptake-deficient Mutants of Rhizobium Japonicum. 1981.

Lepo, J E., et al. Revertible Hydrogen Uptake-deficient Mutants of Rhizobium Japonicum. 1981.