Cita APA (7th ed.)

Allison, M. A., DeGaetano, A. T., & Pasachoff, J. M. (2007). Holt earth science. Holt, Rinehart and Winston.

Cita Chicago (17th ed.)

Allison, Mead A., Arthur T. DeGaetano, i Jay M. Pasachoff. Holt Earth Science. Orlando, FL: Holt, Rinehart and Winston, 2007.

Cita MLA (9th ed.)

Allison, Mead A., et al. Holt Earth Science. Holt, Rinehart and Winston, 2007.