Logan, J. D. (2006). A first course in differential equations. New York: Springer.
Trích dẫn kiểu ChicagoLogan, J. David. A First Course in Differential Equations. New York: Springer, 2006.
ציטוט MLALogan, J. David. A First Course in Differential Equations. New York: Springer, 2006.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.