Dyfyniad APA

Patton, D. H., & Shank, S. (1945). Progressive word mastery. Charles E. Merrill Company.

Dyfyniad Arddull Chicago

Patton, David Hubert, and Shank Shank. Progressive Word Mastery. New York ; Chicago: Charles E. Merrill Company, 1945.

Dyfyniad MLA

Patton, David Hubert, and Shank Shank. Progressive Word Mastery. Charles E. Merrill Company, 1945.

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