Dyfyniad APA

Madison, A., & Drotar, D. L. (1978). Pocket calculators: How to use and enjoy them. T. Nelson.

Dyfyniad Arddull Chicago

Madison, Arnold, and David L. Drotar. Pocket Calculators: How to Use and Enjoy Them. Nashville: T. Nelson, 1978.

Dyfyniad MLA

Madison, Arnold, and David L. Drotar. Pocket Calculators: How to Use and Enjoy Them. T. Nelson, 1978.

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