Fungi of Northern Europe 
Pegler, David.
Nilsson, Sven.Adaptations.Svampar i naturen.
Persson, Olle.
Mossberg, Bo.
Rush, David.
Spooner, Brian.
Harmondsworth Penguin,
1978
Translation and revision of: 'Svampar i naturen 1'. Stockholm : Wahlström och Widstrand, 1977
Bibliography: p.124-125. - Includes index
Fungi