APA (7th ed.) Citation

Schäfer, L. (1988). Karl R. Popper (Orig.-Ausg.). Beck.

Chicago Style (17th ed.) Citation

Schäfer, Lothar. Karl R. Popper. Orig.-Ausg. München: Beck, 1988.

MLA (8th ed.) Citation

Schäfer, Lothar. Karl R. Popper. Orig.-Ausg. Beck, 1988.

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