AXTELL, B. Minor oil crops: Part I- edible oils part II non edible oils, part III Essential oils. Food and Agriculture Organization of the United Nations.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)AXTELL, BL. Minor Oil Crops: Part I- Edible Oils Part II Non Edible Oils, Part III Essential Oils. Food and Agriculture Organization of the United Nations.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)AXTELL, BL. Minor Oil Crops: Part I- Edible Oils Part II Non Edible Oils, Part III Essential Oils. Food and Agriculture Organization of the United Nations.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.