ROTH, Lawrence O. Field, Harry L Introduction to agricultural engineering (a problem-solving approach) / [by] Lawrence O. Roth, Harry L. Field - 2nd ed., rev. - New Delhi CBS pub. 1996 - iii, 346 pages. Includes appendices & index. ISBN: 8123904711 Subjects--Topical Terms: Agricultural engineeringFarm machinery Dewey Class. No.: 631.3 / ROT