APA (7th ed.) Citation

Friedrich, J. (2011). Doppelte Solidarität. Zeitzeichen, 12(4), 37.

Chicago Style (17th ed.) Citation

Friedrich, Johannes. "Doppelte Solidarität." Zeitzeichen 12, no. 4 (2011): 37.

MLA (9th ed.) Citation

Friedrich, Johannes. "Doppelte Solidarität." Zeitzeichen, vol. 12, no. 4, 2011, p. 37.

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