Gaya APA

Krajcik, J, S. et al (2003). Teaching science in elementary and middle school classrooms : a project-based approach (Ed.2). New York: McGraw Hill.

Gaya MLA

Krajcik, Joseph, S.. et al. "Teaching science in elementary and middle school classrooms : a project-based approach". Ed.2 New York: McGraw Hill, 2003. Buku Tercetak.