APA (7th ed.) Citation

NA. (1920). Arnold Arboretum Hybrids. Zenodo.

Chicago Style (17th ed.) Citation

NA. Arnold Arboretum Hybrids. Zenodo, 1920.

MLA (9th ed.) Citation

NA. Arnold Arboretum Hybrids. Zenodo, 1920.

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