Environmental Protection Agency Office of Pesticides and Toxic Substances. National pesticides monitoring plan. Environmental Protection Agency, Office of Pesticides and Toxic Substances.
Παραπομπή σε μορφή Chicago (17η εκδ.)Environmental Protection Agency Office of Pesticides and Toxic Substances. National Pesticides Monitoring Plan. Washington: Environmental Protection Agency, Office of Pesticides and Toxic Substances.
Παραπομπή σε μορφή MLA (9th εκδ.)Environmental Protection Agency Office of Pesticides and Toxic Substances. National Pesticides Monitoring Plan. Environmental Protection Agency, Office of Pesticides and Toxic Substances.
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