Cita APA

Denham, C., & Lieberman, A. (1980). Time to learn. U.S. Department of education.

Citación estilo Chicago

Denham, Carolyn, and Ann Lieberman. Time to Learn. California: U.S. Department of education, 1980.

Cita MLA

Denham, Carolyn, and Ann Lieberman. Time to Learn. U.S. Department of education, 1980.

Warning: These citations may not always be 100% accurate.