APA (7th ed.) Citation

Porter, E. H. (2011). The Turn of the Tide: The Story of How Margaret Solved Her Problem. Project Gutenberg.

Chicago Style (17th ed.) Citation

Porter, Eleanor H. The Turn of the Tide: The Story of How Margaret Solved Her Problem. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Porter, Eleanor H. The Turn of the Tide: The Story of How Margaret Solved Her Problem. Project Gutenberg, 2011.

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