Ducan Poore. (1976). Ecological Guidelines For Development In Tropical Rain Forests. Switzerland: Internasional Union For Conservation Of Nature.
استشهاد بنمط شيكاغوDucan Poore. Ecological Guidelines For Development In Tropical Rain Forests. Switzerland: Internasional Union For Conservation Of Nature, 1976.
MLA استشهادDucan Poore. Ecological Guidelines For Development In Tropical Rain Forests. Switzerland: Internasional Union For Conservation Of Nature, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.