Gaya APA
Blumenfeld, Esther, Alpern, Lynne, Karim I. G. Siregar, Adam Studio. (1990).
Untaian Senyum=The Smile Connection (Cet. 1.--).
Englewood Cliffs:
Prentice-Hall.
Gaya Chicago
Blumenfeld, Esther, Alpern, Lynne, Karim I. G. Siregar, Adam Studio.
Untaian Senyum=The Smile Connection.
Cet. 1.--
Englewood Cliffs:
Prentice-Hall,
1990.
Text.
Gaya MLA
Blumenfeld, Esther, Alpern, Lynne, Karim I. G. Siregar, Adam Studio.
Untaian Senyum=The Smile Connection.
Cet. 1.--
Englewood Cliffs:
Prentice-Hall,
1990.
Text.
Gaya Turabian
Blumenfeld, Esther, Alpern, Lynne, Karim I. G. Siregar, Adam Studio.
Untaian Senyum=The Smile Connection.
Cet. 1.--
Englewood Cliffs:
Prentice-Hall,
1990.
Print.