Froelich, J. A., & Walther, W. (1796). Iosephi Aloysii Froelich med. et phil. doctoris societ. botan. Ratisbon. sodalis De gentiana libellvs sistens speciervm cognitarvm descriptiones cvm observationibvs: Accedit tabvla aenea. Erlangae: svmtv W. Waltheri.
Chicago Style CitationFroelich, Josef Alois, and Wolfgang Walther. Iosephi Aloysii Froelich Med. Et Phil. Doctoris Societ. Botan. Ratisbon. Sodalis De Gentiana Libellvs Sistens Speciervm Cognitarvm Descriptiones Cvm Observationibvs: Accedit Tabvla Aenea. Erlangae: svmtv W. Waltheri, 1796.
MLA CitationFroelich, Josef Alois, and Wolfgang Walther. Iosephi Aloysii Froelich Med. Et Phil. Doctoris Societ. Botan. Ratisbon. Sodalis De Gentiana Libellvs Sistens Speciervm Cognitarvm Descriptiones Cvm Observationibvs: Accedit Tabvla Aenea. Erlangae: svmtv W. Waltheri, 1796.