APA (7th ed.) Citation

Moritz, R. E. (2014). Memorabilia Mathematica or the Philomath's Quotation-Book. Project Gutenberg.

Chicago Style (17th ed.) Citation

Moritz, Robert Edouard. Memorabilia Mathematica or the Philomath's Quotation-Book. Project Gutenberg, 2014.

MLA (9th ed.) Citation

Moritz, Robert Edouard. Memorabilia Mathematica or the Philomath's Quotation-Book. Project Gutenberg, 2014.

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