APA (7th ed.) Citation

Mühlbach, L., & Langley, P. (2002). Old Fritz and the New Era. Project Gutenberg.

Chicago Style (17th ed.) Citation

Mühlbach, L., and Peter Langley. Old Fritz and the New Era. Project Gutenberg, 2002.

MLA (9th ed.) Citation

Mühlbach, L., and Peter Langley. Old Fritz and the New Era. Project Gutenberg, 2002.

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