APA (7th ed.) Citation

Decadic pelargonium cultivars: The Spalding list revised.

Chicago Style (17th ed.) Citation

Decadic Pelargonium Cultivars: The Spalding List Revised. [London?].

MLA (9th ed.) Citation

Decadic Pelargonium Cultivars: The Spalding List Revised.

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