Παραπομπή σε μορφή APA (7η εκδ.)

Almgren, F. J. (1976). Existence and regularity almost everywhere of solutions to elliptic variational problems with constraints. American Mathematical Society.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Almgren, Frederick J. Existence and Regularity Almost Everywhere of Solutions to Elliptic Variational Problems with Constraints. Providence, R.I.: American Mathematical Society, 1976.

Παραπομπή σε μορφή MLA (9th εκδ.)

Almgren, Frederick J. Existence and Regularity Almost Everywhere of Solutions to Elliptic Variational Problems with Constraints. American Mathematical Society, 1976.