APA (7th ed.) Citation

Wittmann, R. (2007). O Captain, my Captain. Zeitzeichen, 8(7), 37-38.

Chicago Style (17th ed.) Citation

Wittmann, Rainer. "O Captain, My Captain." Zeitzeichen 8, no. 7 (2007): 37-38.

MLA (9th ed.) Citation

Wittmann, Rainer. "O Captain, My Captain." Zeitzeichen, vol. 8, no. 7, 2007, pp. 37-38.

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