[6]
Alpine.in: B. F. Chabot and H. A. Mooney(Editors). Physiological Ecology in North America Plant Communities . New York: Champan &Hall .2 Bliss,L. C. U. S. A . 1985
[6]
Alpine.in: B. F. Chabot and H. A. Mooney(Editors). Physiological Ecology in North America Plant Communities . New York: Champan &Hall .2 Bliss,L. C. U. S. A . 1985