Sonntag, C. O. (1894). A pocket flora of Edinburgh and the surrounding district: A collection and full description of all phanerogamic and the principal cryptogamic plants classified after the natural system, with an artificial key and a glossary of botanical terms. Williams and Norgate.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sonntag, C. O. A Pocket Flora of Edinburgh and the Surrounding District: A Collection and Full Description of All Phanerogamic and the Principal Cryptogamic Plants Classified After the Natural System, with an Artificial Key and a Glossary of Botanical Terms. London: Williams and Norgate, 1894.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sonntag, C. O. A Pocket Flora of Edinburgh and the Surrounding District: A Collection and Full Description of All Phanerogamic and the Principal Cryptogamic Plants Classified After the Natural System, with an Artificial Key and a Glossary of Botanical Terms. Williams and Norgate, 1894.