Dyfyniad APA

Center, S. S., & Persons, G. L. (1941). Teachers' manual and key to workbook, Problems in reading and thinking. The Macmillan Company.

Dyfyniad Arddull Chicago

Center, Stella S., and Gladys L. Persons. Teachers' Manual and Key to Workbook, Problems in Reading and Thinking. New York: The Macmillan Company, 1941.

Dyfyniad MLA

Center, Stella S., and Gladys L. Persons. Teachers' Manual and Key to Workbook, Problems in Reading and Thinking. The Macmillan Company, 1941.

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