FAO. (1997). International standards for phytosanitary measures Part 4: Pest survellance; Requirements for the establishment of pest free areas. Rome: FAO.
Παραπομπή Chicago StyleFAO. International Standards for Phytosanitary Measures Part 4: Pest Survellance; Requirements for the Establishment of Pest Free Areas. Rome: FAO, 1997.
Παραπομπή MLAFAO. International Standards for Phytosanitary Measures Part 4: Pest Survellance; Requirements for the Establishment of Pest Free Areas. Rome: FAO, 1997.
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