Gaya APA
Heckman, G., Ingre, D. (2008).
Thomson engineering guide to web research 2007-2008 (International Student).
Ontario:
Thomson Learning.
Gaya MLA
Heckman, Grant., Ingre, David.
"Thomson engineering guide to web research 2007-2008".
International Student
Ontario:
Thomson Learning,
2008.
Text.