Dyfyniad APA

Hestenes, M. D., & Hill, R. O. (1982). Trigonometry with calculators. Prentice-Hall.

Dyfyniad Arddull Chicago

Hestenes, Marshall D., and Richard O. Hill. Trigonometry with Calculators. Englewood Cliffs, N.J: Prentice-Hall, 1982.

Dyfyniad MLA

Hestenes, Marshall D., and Richard O. Hill. Trigonometry with Calculators. Prentice-Hall, 1982.

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