Nitrogen as a water pollutant: Proceedings of the conference on copenhagen August 18-20, 1975.
استشهاد بنمط شيكاغوNitrogen as a Water Pollutant: Proceedings of the Conference on Copenhagen August 18-20, 1975.
MLA استشهادNitrogen as a Water Pollutant: Proceedings of the Conference on Copenhagen August 18-20, 1975.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.