Eastham, M. (1973). Spectral theory of periodic differential equations. Scottish academic press.
استشهاد بنمط شيكاغوEastham, MSP. Spectral Theory of Periodic Differential Equations. Scottish academic press, 1973.
MLA استشهادEastham, MSP. Spectral Theory of Periodic Differential Equations. Scottish academic press, 1973.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.