APA (7th ed.) Citation

Edlin, H. L. (1978). The tree key: A guide to identification in garden, field and forest : 77 genera including 235 species. F. Warne.

Chicago Style (17th ed.) Citation

Edlin, Herbert L. The Tree Key: A Guide to Identification in Garden, Field and Forest : 77 Genera Including 235 Species. London: F. Warne, 1978.

MLA (9th ed.) Citation

Edlin, Herbert L. The Tree Key: A Guide to Identification in Garden, Field and Forest : 77 Genera Including 235 Species. F. Warne, 1978.