APA (7th ed.) Citation

Beer, E. J. (1961). Zum Problem der "Biblia Porta".

Chicago Style (17th ed.) Citation

Beer, Ellen J. Zum Problem Der "Biblia Porta". 1961.

MLA (9th ed.) Citation

Beer, Ellen J. Zum Problem Der "Biblia Porta". 1961.

Warning: These citations may not always be 100% accurate.