Παραπομπή σε μορφή APA (7η εκδ.)

Markowitz, H. M. (2002). EFFICIENT PORTFOLIOS, SPARSE MATRICES, AND ENTITIES: A RETROSPECTIVE. Operations Research, 50(1), 154. https://doi.org/10.1287/opre.50.1.154.17774

Παραπομπή σε μορφή Chicago (17η εκδ.)

Markowitz, Harry M. "EFFICIENT PORTFOLIOS, SPARSE MATRICES, AND ENTITIES: A RETROSPECTIVE." Operations Research 50, no. 1 (2002): 154. https://doi.org/10.1287/opre.50.1.154.17774.

Παραπομπή σε μορφή MLA (9th εκδ.)

Markowitz, Harry M. "EFFICIENT PORTFOLIOS, SPARSE MATRICES, AND ENTITIES: A RETROSPECTIVE." Operations Research, vol. 50, no. 1, 2002, p. 154, https://doi.org/10.1287/opre.50.1.154.17774.