APA

Alexander M., . (1971). Microbial ecology. New York: John Wiley & Sons.

Chicago

Alexander Martin, . 1971. Microbial ecology. New York: John Wiley & Sons.

Harvard

Alexander M., . (1971). Microbial ecology. New York: John Wiley & Sons.

MLA

Alexander Martin, . Microbial ecology. New York: John Wiley & Sons. 1971.