APA

Stakgold I., . (19). Boundary value problems of mathematical physics. New York [u.a.]: Macmillan [u.a.].

Chicago

Stakgold Ivar, . 19. Boundary value problems of mathematical physics. New York [u.a.]: Macmillan [u.a.].

Harvard

Stakgold I., . (19). Boundary value problems of mathematical physics. New York [u.a.]: Macmillan [u.a.].

MLA

Stakgold Ivar, . Boundary value problems of mathematical physics. New York [u.a.]: Macmillan [u.a.]. 19.