APA (7th ed.) Citation

Dunbar, J. (1921). How to Grow Rhododendrons. Zenodo.

Chicago Style (17th ed.) Citation

Dunbar, John. How to Grow Rhododendrons. Zenodo, 1921.

MLA (9th ed.) Citation

Dunbar, John. How to Grow Rhododendrons. Zenodo, 1921.

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