APA (7th ed.) Citation

Hansen, L. T., & Wessolowski, H. W. (2008). The Undersea Tube. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hansen, L. Taylor, and Hans Waldemar Wessolowski. The Undersea Tube. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Hansen, L. Taylor, and Hans Waldemar Wessolowski. The Undersea Tube. Project Gutenberg, 2008.

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