APA Style
Day, R, ., [, A. (2001).
Navigating Through Geometry in Grades 9-12 .
Virginia:
National Council of Teachers of Mathematics (NCTM).
MLA Style
Day, Roger,, ..., [et., Al.].
"Navigating Through Geometry in Grades 9-12".
Virginia:
National Council of Teachers of Mathematics (NCTM),
2001.
BOOK.