Linear differential equations of principal type

MLA

Egorov, I︠U︡. V. Linear differential equations of principal type. New York ; London : Consultants Bureau, [1986]

APA

Egorov, I. (1986). Linear differential equations of principal type. New York ; London : Consultants Bureau.

Chicago

Egorov, I︠U︡. V. Linear differential equations of principal type. New York ; London : Consultants Bureau, [1986]