APA Style

Lappan, G, (, A. (2004). Connected Mathematics: Number and Operations; Clever Counting: Combinatorics: Teacher's Guide . : Prentice Hall.

MLA Style

Lappan, Glenda, (et., Al). "Connected Mathematics: Number and Operations; Clever Counting: Combinatorics: Teacher's Guide". : Prentice Hall, 2004. BOOK.