Gaya APA

Douglas, A, L, W, G, M, S, A, W. (2012). Statistical Techniques in Business & Economics; Sixteenth Edition (16). Amerika: Mc Graw Hill Education.

Gaya MLA

Douglas, A., Lind;, William, G., Marchal;, Samuel, A., Wathen. "Statistical Techniques in Business & Economics; Sixteenth Edition". 16 Amerika: Mc Graw Hill Education, 2012. Text.