Gaya APA

Allendoerfer, C., Oakley, C, O. (1963). Principles of mathematics (1963). : New York : McGraw Hill Book Co.,.

Gaya MLA

Allendoerfer, CB., Oakley, Cletus, O.. "Principles of mathematics". 1963 : New York : McGraw Hill Book Co.,, 1963. Text.