APA (7th ed.) Citation

Sigl, R. (1973). Einführung in die Potentialtheorie. Wichmann.

Chicago Style (17th ed.) Citation

Sigl, Rudolf. Einführung in Die Potentialtheorie. Karlsruhe: Wichmann, 1973.

MLA (9th ed.) Citation

Sigl, Rudolf. Einführung in Die Potentialtheorie. Wichmann, 1973.

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