Soil and plant analysis for tree culture - S.A. Wilde; R.B. Corey J.G. Iyer G.K. Voigt (New Delhi Oxford and IBH Publishing Company, 1979)
S.A. Wilde; R.B. Corey; J.G. Iyer & G.K. Voigt: Soil and plant analysis for tree culture. (5th Edition) New Delhi. Oxford and IBH Publishing Company, 1979.--(631.4WIL)
ENGLISH