APA (7th ed.) Citation

Darwin, E. The Botanic Garden, a Poem in Two Parts. Part 1: The Economy of Vegetation.

Chicago Style (17th ed.) Citation

Darwin, Erasmus. The Botanic Garden, a Poem in Two Parts. Part 1: The Economy of Vegetation.

MLA (9th ed.) Citation

Darwin, Erasmus. The Botanic Garden, a Poem in Two Parts. Part 1: The Economy of Vegetation.

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