Agnew, S. (1958). A study in the experimental taxonomy of some British sphagna (section cuspidata), with observations on their ecology.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Agnew, S. A Study in the Experimental Taxonomy of Some British Sphagna (section Cuspidata), with Observations on Their Ecology. 1958.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Agnew, S. A Study in the Experimental Taxonomy of Some British Sphagna (section Cuspidata), with Observations on Their Ecology. 1958.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.