APA (7. basım) Alıntı

(1982). Variational principles and free-boundary problems / Avner Friedman, Department of Mathematics, Northwestern University.

Chicago Style (17. basım) Atıf

Variational Principles and Free-boundary Problems / Avner Friedman, Department of Mathematics, Northwestern University. 1982.

MLA (9th ed.) Atıf

Variational Principles and Free-boundary Problems / Avner Friedman, Department of Mathematics, Northwestern University. 1982.