Gaya APA
Houston, W.
(1994).
Ortodonti Walther=Walther's orthodontic notes.
(
4)
.
Jakarta:
Hipokrates.
Gaya MLA
Houston, W.J.B..
"Ortodonti Walther=Walther's orthodontic notes.".
4
Jakarta:
Hipokrates,
1994.
Text.