Ewing, C. H. (1952). General mathematics at work. Heath.
Chicago Style (17. basım) AtıfEwing, Claude Henry. General Mathematics at Work. Boston: Heath, 1952.
MLA (9th ed.) AtıfEwing, Claude Henry. General Mathematics at Work. Heath, 1952.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..