The development and function of roots third Cabot Symposium
Cabot Symposium(3rd :1974 :Harvard Forest)
Torrey, John Gordon.
Clarkson, David Thomas.
London Academic Press
1975
'... held in April, 1974 at the Harvard Forest in Petersham, Massachusetts, U.S.A.' - Preface
Includes bibliographies and index
Roots (Botany)