Practical mathematics; a textbook covering the syllabus of the B. SC. examinations in this subject and suitable for advanced classes in technical colleges, Toft, Louis. McKay, Alexander Duncan Den, joint author. Mathematics. QA37 .T6 510 TOP London : New York [etc.] Sir I. Pitman & sons, ltd., 1942. 1942. 1931 Text vii, 594 p. : eng