APA

Downing D., .Dictionary of Mathematics Terms. New york:Barron,s,2009: .

Chicago

Downing Douglas, .Dictionary of Mathematics Terms. New york:Barron,s,2009: .

Harvard

Downing D., .Dictionary of Mathematics Terms. New york:Barron,s,2009: .

MLA

Downing Douglas, .New york:Barron,s,2009: . .