TY - BOOK AU - Lavergne,D.C. AU - Thompson,C.T. ED - Louisiana. TI - Operation, adjustment, and care of tractors T2 - Its Bulletin AV - L154 .B32 no. 477 U1 - 631.3722 PY - 1942/// CY - Baton Rouge, La. KW - Traction-engines KW - Farm engines N1 - At head of title: State Dept. of education of Louisiana. January, 1942; "Prepared by Mr. D. C. Lavergne ... and Mr. C. T. Thompson."--Foreword ER -