The application of differential equations to chemical engineering problems, by W.R. Marshall, jr., and R.L. Pigford. Based on a graduate chemical engineering course given by the authors at the University of Delaware. Marshall, W. R. (William Robert), 1916- Pigford, Robert L. (Robert Lamar), 1917-1988. Differential equations. Chemical engineering. QA371 .M28 517.38 MAA Includes bibliographical references. Newark, Delaware : Univ. of Delaware, 1947. 1947. 1947 Text xii, 170 p. : eng