Baker, L. (1995). Primary mathematics with Polydron TM: Explore, create, understand. Northampton: Polydron International.
Trích dẫn kiểu ChicagoBaker, Lyndon. Primary Mathematics With Polydron TM: Explore, Create, Understand. Northampton: Polydron International, 1995.
MLA引文Baker, Lyndon. Primary Mathematics With Polydron TM: Explore, Create, Understand. Northampton: Polydron International, 1995.
警告:這些引文格式不一定是100%准確.