Dyfyniad APA

Myers, A. S., & Ferrari, L. (1993). Letters for all occasions (Rev. ed.). Harper Paperbacks.

Dyfyniad Arddull Chicago

Myers, Alfred Stuart, and Lynn Ferrari. Letters for All Occasions. Rev. ed. New York, NY: Harper Paperbacks, 1993.

Dyfyniad MLA

Myers, Alfred Stuart, and Lynn Ferrari. Letters for All Occasions. Rev. ed. Harper Paperbacks, 1993.

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