Principles of agrobiology
Willcox, O. W.
Principles of agrobiology or, The laws of plant growth in relation to crop production by Oswin W. Willcox - New York Palmer Pub. Corp. 1930. - 96 p. illus., diagrs. 24 cm.
Agriculture.
631.557:581.134 W 697 P
Principles of agrobiology or, The laws of plant growth in relation to crop production by Oswin W. Willcox - New York Palmer Pub. Corp. 1930. - 96 p. illus., diagrs. 24 cm.
Agriculture.
631.557:581.134 W 697 P