Cita APA (7th ed.)
Ziemer,Rodger E. (2015). Sigal & Systems: Continuous and discrete (4th ed.). Pearson India Education.
Cita Chicago (17th ed.)
Ziemer,Rodger E. Sigal & Systems: Continuous and Discrete. 4th ed. New Delhi: Pearson India Education, 2015.
Cita MLA (9th ed.)
Ziemer,Rodger E. Sigal & Systems: Continuous and Discrete. 4th ed. Pearson India Education, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.