Lua APA (7ú heag.)

Cunningham, W. P. (1999). Environmental encyclopedia (2nd ed.). Gale, Jaico Publishing House.

Lua i Stíl Chicago (17ú heag.)

Cunningham, William P. Environmental Encyclopedia. 2nd ed. Detroit : Mumbai: Gale, Jaico Publishing House, 1999.

Lua MLA (8ú heag.)

Cunningham, William P. Environmental Encyclopedia. 2nd ed. Gale, Jaico Publishing House, 1999.

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