Association of Teachers of Mathematics & Bills, C. (2004). Thinkers / created and compiled for ATM by Chris Bills ... [et al.]. Association of Teachers of Mathematics.
Chicago Style (17th ed.) CitationAssociation of Teachers of Mathematics and Chris Bills. Thinkers / Created and Compiled for ATM by Chris Bills ... [et Al.]. Derby: Association of Teachers of Mathematics, 2004.
MLA (9th ed.) CitationAssociation of Teachers of Mathematics and Chris Bills. Thinkers / Created and Compiled for ATM by Chris Bills ... [et Al.]. Association of Teachers of Mathematics, 2004.
Warning: These citations may not always be 100% accurate.