APA
Dilley Clyde A, Rucker Walter E. Jackson Ann E, . (1972). Heath elementary mathematics. Lexington, USA: D.C Heath and Company.
Chicago
Dilley Clyde A, Rucker Walter E. Jackson Ann E, . 1972. Heath elementary mathematics. Lexington, USA: D.C Heath and Company.
Harvard
Dilley Clyde A, Rucker Walter E. Jackson Ann E, . (1972). Heath elementary mathematics. Lexington, USA: D.C Heath and Company.
MLA
Dilley Clyde A, Rucker Walter E. Jackson Ann E, . Heath elementary mathematics. Lexington, USA: D.C Heath and Company. 1972.
