Toft, Louis. Practical mathematics / Louis Toft. - London : Pitman, 1985. - x, 504 p. : ill. ; 23 cm. Includes index. LCCN: sa 3003641 Subjects--Topical Terms: Engineering mathematics.Engineering mathematics -- Textbooks. LC Class. No.: QA3763 / .C535 1963 Dewey Class. No.: 510 / TOF