Ahlgren, G. (1979). Relationship between algal growth and nutrient concentration in chemostat culture and natural populations. The University ; Distributed by Almqvist & Wiksell International.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ahlgren, Gunnel. Relationship Between Algal Growth and Nutrient Concentration in Chemostat Culture and Natural Populations. Uppsala : Stockholm: The University ; Distributed by Almqvist & Wiksell International, 1979.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ahlgren, Gunnel. Relationship Between Algal Growth and Nutrient Concentration in Chemostat Culture and Natural Populations. The University ; Distributed by Almqvist & Wiksell International, 1979.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.