Dyfyniad APA

Smith, K. J. (1987). Trigonometry for college students (4th ed.). Brooks/Cole Pub. Co..

Dyfyniad Arddull Chicago

Smith, Karl J. Trigonometry for College Students. 4th ed. Monterey, Calif.: Brooks/Cole Pub. Co., 1987.

Dyfyniad MLA

Smith, Karl J. Trigonometry for College Students. 4th ed. Brooks/Cole Pub. Co., 1987.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.