Dyfyniad APA

Armento, B. J. (1991). Houghton Mifflin social studies (Teacher's ed.). Houghton Mifflin.

Dyfyniad Arddull Chicago

Armento, Beverly Jeanne. Houghton Mifflin Social Studies. Teacher's ed. Boston: Houghton Mifflin, 1991.

Dyfyniad MLA

Armento, Beverly Jeanne. Houghton Mifflin Social Studies. Teacher's ed. Houghton Mifflin, 1991.

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