Indian Institute of Petroleum Assessment of diesels for agriculture sector : A special report - Dehradun IIP 1977 - (V1.vi,201 ; V2.vi,418)p. cm. ill Standard No.: 52893 Source: Textual Subjects--Topical Terms: PetroleumAgriculture Dewey Class. No.: J:(F555).44r, L7,2.1-2.2