APA (7th ed.) Citation

(1890). P. Piel's sämtliche Werke. L.Schwann.

Chicago Style (17th ed.) Citation

P. Piel's Sämtliche Werke. Düsseledorf: L.Schwann, 1890.

MLA (9th ed.) Citation

P. Piel's Sämtliche Werke. L.Schwann, 1890.

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