APA (7th ed.) Citation

Beck, C. D., & Beck, J. W. (1779). Specimen historiae Bibliothecarum Alexandrinarum.

Chicago Style (17th ed.) Citation

Beck, Christian Daniel, and Jan Wilbertus Beck. Specimen Historiae Bibliothecarum Alexandrinarum. Lipsiae, 1779.

MLA (8th ed.) Citation

Beck, Christian Daniel, and Jan Wilbertus Beck. Specimen Historiae Bibliothecarum Alexandrinarum. 1779.