Lua APA (7ú heag.)

.Smith, W. H. (1990). Air pollution and forests: Interactions between air contaminants and forest ecosystems (2nd ed.). Springer-Verlag.

Lua i Stíl Chicago (17ú heag.)

.Smith, William H. Air Pollution and Forests: Interactions Between Air Contaminants and Forest Ecosystems. 2nd ed. New York: Springer-Verlag, 1990.

Lua MLA (9ú heag.)

.Smith, William H. Air Pollution and Forests: Interactions Between Air Contaminants and Forest Ecosystems. 2nd ed. Springer-Verlag, 1990.

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