TY  - BOOK
AU  - Rosskopff; Bymyron F and Aten; Harlod D and Reeve; William D.
TI  - Mathematics: A Second Course
U1  - M2 R3 
CY  - New York
PB  - Mcgraw-Hill Book Company.
KW  - Statistics;The Trapezoid; Parallelogram
ER  -