Παραπομπή σε μορφή APA (7η εκδ.)

Buttazzo, G. (1989). Semicontinuity, relaxation and integral representation in the calculus of variations. Longman.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Buttazzo, Giuseppe. Semicontinuity, Relaxation and Integral Representation in the Calculus of Variations. Harlow, Essex England: Longman, 1989.

Παραπομπή σε μορφή MLA (9th εκδ.)

Buttazzo, Giuseppe. Semicontinuity, Relaxation and Integral Representation in the Calculus of Variations. Longman, 1989.