Leff, L. (2002). Stream Microbiology. John Wiley and Sons. https://oaks.kent.edu/node/595
Leff, Laura. 2002. “Stream Microbiology”. John Wiley and Sons. https://oaks.kent.edu/node/595.
Leff, L. Stream Microbiology. John Wiley and Sons, 1 Jan. 2002, https://oaks.kent.edu/node/595.