Gaya APA
Smith, K., G., H., H., C., J. (2006).
CRITICAL MASSES AND CRITICAL CHOICES .
USA:
Univerisity of Pittsburgh Press.
Gaya MLA
Smith, Kerry, G, Herron,, Hank, C, Jenkinks.
"CRITICAL MASSES AND CRITICAL CHOICES".
USA:
Univerisity of Pittsburgh Press,
2006.
Buku Inti.