APA (7th ed.) Citation

Sengle, F., & Sengle, F. (1972). Die Formenwelt. Metzler.

Chicago Style (17th ed.) Citation

Sengle, Friedrich, and Friedrich Sengle. Die Formenwelt. Stuttgart: Metzler, 1972.

MLA (8th ed.) Citation

Sengle, Friedrich, and Friedrich Sengle. Die Formenwelt. Metzler, 1972.

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