Cita APA (7a ed.)

Hughes, G. E., Miller, N. D., & Volkening, S. L. (1984). Practicing world history skills: Getting the main idea, learning the vocabulary, reading graphic aids. Scott, Foresman.

Cita Chicago Style (17a ed.)

Hughes, Glenn E., Norman D. Miller, y Stephen L. Volkening. Practicing World History Skills: Getting the Main Idea, Learning the Vocabulary, Reading Graphic Aids. Glenview, Ill: Scott, Foresman, 1984.

Cita MLA (9a ed.)

Hughes, Glenn E., et al. Practicing World History Skills: Getting the Main Idea, Learning the Vocabulary, Reading Graphic Aids. Scott, Foresman, 1984.