Biological nitrogen fixation in natural and agricultural habitats. proceedings...
LIE, T.A. and E.G. MULDER (eds).
Martinus Nijhoff, The Hague, 1971
€ 95,00
24 cm. original softcover. 590 pp. ills, diagrams. references. Plant and Soil special volume. -(edges and cover slightly foxed, otherwise (very) good).