Cita APA (7th ed.)
Valkenburg, M. V. (1974). Networks Analysis (3rd ed.). Prentic Hall.
Cita Chicago (17th ed.)
Valkenburg, M.E. Van. Networks Analysis. 3rd ed. New Delhi: Prentic Hall, 1974.
Cita MLA (9th ed.)
Valkenburg, M.E. Van. Networks Analysis. 3rd ed. Prentic Hall, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.