Philippines. National Science and Technology Authority. (1982). Proceedings of the Seminar-Workshop on essential oils, spices and pigments, held at the Philippine International Convention Center on 25-26 August 1982. National Science and Technology Authority in cooperation with the Regional Centre for Technology Transfer.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippines. National Science and Technology Authority. Proceedings of the Seminar-Workshop on Essential Oils, Spices and Pigments, Held at the Philippine International Convention Center on 25-26 August 1982. Manila: National Science and Technology Authority in cooperation with the Regional Centre for Technology Transfer, 1982.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippines. National Science and Technology Authority. Proceedings of the Seminar-Workshop on Essential Oils, Spices and Pigments, Held at the Philippine International Convention Center on 25-26 August 1982. National Science and Technology Authority in cooperation with the Regional Centre for Technology Transfer, 1982.