Cita APA (7a ed.)
Sandefur, J. Elementary Mathematical Modeling: A Dynamic Approach. Brooks Cole.
Cita estilo Chicago (17a ed.)
Sandefur, James. Elementary Mathematical Modeling: A Dynamic Approach. Pacific Grove, EUA: Brooks Cole.
Cita MLA (9a ed.)
Sandefur, James. Elementary Mathematical Modeling: A Dynamic Approach. Brooks Cole.
警告：這些引文格式不一定是100％准確.