Lua APA (7ú heag.)

Não informado. (1946). Agricultural chemicals. Industry Publications.

Lua i Stíl Chicago (17ú heag.)

Não informado. Agricultural Chemicals. Montclair, NJ: Industry Publications, 1946.

Lua MLA (8ú heag.)

Não informado. Agricultural Chemicals. Industry Publications, 1946.

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