Gaya APA
Kruskal, W, H. (1968).
International Encyclopedia of Statistik A - N .
:
The Free Press,Devicion of Macmllan Publishing Inc.
Gaya MLA
Kruskal, William, H..
"International Encyclopedia of Statistik A - N".
:
The Free Press,Devicion of Macmllan Publishing Inc,
1968.
Text.