APA (7th ed.) Citation

Rhododendron Society. (1947). The species of Rhododendron ([Second edition].).

Chicago Style (17th ed.) Citation

Rhododendron Society. The Species of Rhododendron. [Second edition]. [Edinburgh], 1947.

MLA (9th ed.) Citation

Rhododendron Society. The Species of Rhododendron. [Second edition]. 1947.

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