LANGER, R. E. (1954). First course in ordinary differen-: Tial equations. John Wiley.
Chicagoスタイル(17版)引用形式LANGER, Rudolph E. First Course in Ordinary Differen-: Tial Equations. New York: John Wiley, 1954.
MLA(9版)引用形式LANGER, Rudolph E. First Course in Ordinary Differen-: Tial Equations. John Wiley, 1954.
警告: この引用は必ずしも正確ではありません.