Παραπομπή σε μορφή APA (7η εκδ.)

Lopez, A. F. (1991). Noether-Lefschetz theory and the Picard group of projective surfaces. American Mathematical Society.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Lopez, Angelo Felice. Noether-Lefschetz Theory and the Picard Group of Projective Surfaces. Providence, R.I., USA: American Mathematical Society, 1991.

Παραπομπή σε μορφή MLA (9th εκδ.)

Lopez, Angelo Felice. Noether-Lefschetz Theory and the Picard Group of Projective Surfaces. American Mathematical Society, 1991.