Cita APA

Ekrutt, J. W., & Hatchett, C. (1992). Stars and planets: Identifying them, learning about them, experiencing them. Hauppauge, New York: Barron's.

Citación estilo Chicago

Ekrutt, Joachim W., y Clint Hatchett. Stars and Planets: Identifying Them, Learning About Them, Experiencing Them. Hauppauge, New York: Barron's, 1992.

Cita MLA

Ekrutt, Joachim W., y Clint Hatchett. Stars and Planets: Identifying Them, Learning About Them, Experiencing Them. Hauppauge, New York: Barron's, 1992.