Cita APA

Gregory, P. H., & Gregory, P. H. (1961). The microbiology of the atmosphere. New York, New York: Interscience.

Citación estilo Chicago

Gregory, Philip H., y Philip H. Gregory. The Microbiology of the Atmosphere. New York, New York: Interscience, 1961.

Cita MLA

Gregory, Philip H., y Philip H. Gregory. The Microbiology of the Atmosphere. New York, New York: Interscience, 1961.