Gaya APA

Nanney, J, L., Cable, J, L. (1979). Trigonometry : A Skills Approach (Ed. 1). Boston: Allyn And Bacon, Inc..

Gaya MLA

Nanney, J., Louis., Cable, John, L.. "Trigonometry : A Skills Approach". Ed. 1 Boston: Allyn And Bacon, Inc., 1979. Text.