John Poland

year of pub­li­ca­ti­onISBNauthor(s)title
2009978-0-9560144-0-5J. Poland ยท E.J. ClementThe Vegetative Key to the British Flora
2018978-0-9560144-1-2John PolandThe Field Key to Winter Twigs: A Guide to Native and Planted Deciduous Trees, Shrubs and Woody Climbers (Xylophytes) Found in the British Isles