APA (7th ed.) Citation

Hard, M. E. (2009). The Mushroom, Edible and Otherwise Its Habitat and its Time of Growth. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hard, Miron Elisha. The Mushroom, Edible and Otherwise Its Habitat and Its Time of Growth. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Hard, Miron Elisha. The Mushroom, Edible and Otherwise Its Habitat and Its Time of Growth. Project Gutenberg, 2009.

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