APA
Fedel Dan, . (2004). Interactive Mathematics Program Year 1. US: Key Curriculum Press.
Chicago
Fedel Dan, . 2004. Interactive Mathematics Program Year 1. US: Key Curriculum Press.
Harvard
Fedel Dan, . (2004). Interactive Mathematics Program Year 1. US: Key Curriculum Press.
MLA
Fedel Dan, . Interactive Mathematics Program Year 1. US: Key Curriculum Press. 2004.