Principles and Practice of Field Experimentation John Wishart
1958. Reprinted. 133 pages. Gray dust jacket over gray cloth and black lettering. Binding remains firm.Pages are moderately tanned. Boards have moderate edge-wear with bumping to corners and noticeable rubbing to surfaces. Unclipped jacket. Jacket has moderate edge-wear with chips, tears, and creasing. Moderate tanning to jacket spine and edges.