Gaya APA

LAAD, E, C. (1987). Instructor smanual and test Item file the American polity the people their government . New York: W.W.Norton.

Gaya MLA

LAAD, Everett, Carll. "Instructor smanual and test Item file the American polity the people their government". New York: W.W.Norton, 1987. Printed Book.