APA
British Museum Natural History, Ramsbottom John & Smith W. G. (1951). A handbook of the larger British fungi. London: Printed by order of the Trustees of the British Museum.
Chicago
British Museum Natural History, Ramsbottom John and Smith Worthington George. 1951. A handbook of the larger British fungi. London: Printed by order of the Trustees of the British Museum.
Harvard
British Museum Natural History, Ramsbottom John and Smith W. G. (1951). A handbook of the larger British fungi. London: Printed by order of the Trustees of the British Museum.
MLA
British Museum Natural History, Ramsbottom John and Smith Worthington George. A handbook of the larger British fungi. London: Printed by order of the Trustees of the British Museum. 1951.