Cowan, M. K., & Smith, H. (2021). Microbiology: A systems approach (Sixth edition, International student edition.). McGraw-Hill Education.
Chicago Style aipamenaCowan, Marjorie Kelly, and Heidi Smith. Microbiology: A Systems Approach. Sixth edition, International student edition. New York, NY: McGraw-Hill Education, 2021.
MLA aipamenaCowan, Marjorie Kelly, and Heidi Smith. Microbiology: A Systems Approach. Sixth edition, International student edition. McGraw-Hill Education, 2021.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.