Gaya APA

Blumann, A, G, B, A, G. (2004). Elementry statistics : a step approach.-- (Ed. 5.--). America: McGraw-Hill.

Gaya MLA

Blumann, Allan, G., Blumann,, Allan, G.. "Elementry statistics : a step approach.--". Ed. 5.-- America: McGraw-Hill, 2004. Buku.