FAO. (1997). International standards for phytosanitary measures Part 4: Pest survellance; Requirements for the establishment of pest free areas. Rome: FAO.
استشهاد بنمط شيكاغوFAO. International Standards for Phytosanitary Measures Part 4: Pest Survellance; Requirements for the Establishment of Pest Free Areas. Rome: FAO, 1997.
MLA استشهادFAO. International Standards for Phytosanitary Measures Part 4: Pest Survellance; Requirements for the Establishment of Pest Free Areas. Rome: FAO, 1997.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.