The biology of peronospora viviae on pea : laboratory experiments on the effects of temperature, relative humidity and light on the prod uction, germination and infectivity of sporangia /
G.F. Pegg and J. Mence.
- Ashford, Kent : Wye College, University of London, 1970.
- 417-428 p. : ill., charts ; 26 cm.
- Reprint ; no. 492. .