APA

Khattar D., .Objective Arithmetic. Pearson Education International :new york,2009: .

Chicago

Khattar Dinesh, .Objective Arithmetic. Pearson Education International :new york,2009: .

Harvard

Khattar D., .Objective Arithmetic. Pearson Education International :new york,2009: .

MLA

Khattar Dinesh, .Pearson Education International :new york,2009: . .