APA (7th ed.) Citation

Ashburner, K., & McAllister, H. (2013). The genus Betula: A taxonomic revision of birches. Royal Botanic Gardens, Kew.

Chicago Style (17th ed.) Citation

Ashburner, Kenneth, and Hugh McAllister. The Genus Betula: A Taxonomic Revision of Birches. Richmond, Surrey: Royal Botanic Gardens, Kew, 2013.

MLA (8th ed.) Citation

Ashburner, Kenneth, and Hugh McAllister. The Genus Betula: A Taxonomic Revision of Birches. Royal Botanic Gardens, Kew, 2013.