See the NCBI webpage on Methanomicrobium. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. Retrieved 2007-03-19. /wiki/National_Center_for_Biotechnology_Information ↩
John G. Holt, ed. (1994). Bergey's Manual of Determinative Microbiology. Lippincott Williams and Wilkins. p. 722. ISBN 0683006037. Retrieved 2016-08-14. 0683006037 ↩