Gaya APA

Bartle, R, G., Sherbert, D, R. (2011). introduction to real analysis (cetakan 1). AMERIKA: John Wiley & Sons.Inc..

Gaya MLA

Bartle, Robert, G.., Sherbert, Donald, R.. "introduction to real analysis". cetakan 1 AMERIKA: John Wiley & Sons.Inc., 2011. Text.