Spener, P. J., & Beyreuther, E. (1709). Schriften: Opus posthumum ex eiusdem litteris 1709 Schriften.
Chicago Style (17th ed.) CitationSpener, Philipp Jakob, and Erich Beyreuther. "Schriften: Opus Posthumum Ex Eiusdem Litteris 1709." Schriften 1709.
MLA (9th ed.) CitationSpener, Philipp Jakob, and Erich Beyreuther. "Schriften: Opus Posthumum Ex Eiusdem Litteris 1709." Schriften, 1709.
Warning: These citations may not always be 100% accurate.